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Finding the Fourth Proportional to 80,828,746.10, 121,243,119.15 and 80,828,746.10

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Solution

The fourth proportional to 80,828,746.10, 121,243,119.15 and 80,828,746.10 is: 121,243,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,828,746.10 : 121,243,119.15 = 80,828,746.10 : x
  2. Step 2: Convert to fraction form
    80,828,746.10/121,243,119.15 = 80,828,746.10/x
  3. Step 3: Cross multiply
    80,828,746.10x = 121,243,119.15 × 80,828,746.10
  4. Step 4: Simplify right side
    80,828,746.10x = 9,799,929,294,147,398
  5. Step 5: Solve for x
    x = 9,799,929,294,147,398/80,828,746.10
  6. Step 6: Final answer
    x = 121,243,119.15

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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.