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Finding the Fourth Proportional to 1,209,708,002.10, 1,814,562,003.15 and 1,209,708,002.10

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Solution

The fourth proportional to 1,209,708,002.10, 1,814,562,003.15 and 1,209,708,002.10 is: 1,814,562,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,708,002.10 : 1,814,562,003.15 = 1,209,708,002.10 : x
  2. Step 2: Convert to fraction form
    1,209,708,002.10/1,814,562,003.15 = 1,209,708,002.10/x
  3. Step 3: Cross multiply
    1,209,708,002.10x = 1,814,562,003.15 × 1,209,708,002.10
  4. Step 4: Simplify right side
    1,209,708,002.10x = 2,195,090,175,517,160,448
  5. Step 5: Solve for x
    x = 2,195,090,175,517,160,448/1,209,708,002.10
  6. Step 6: Final answer
    x = 1,814,562,003.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.