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Finding the Fourth Proportional to 187,170,986.20, 280,756,479.30 and 187,170,986.20

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Solution

The fourth proportional to 187,170,986.20, 280,756,479.30 and 187,170,986.20 is: 280,756,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,170,986.20 : 280,756,479.30 = 187,170,986.20 : x
  2. Step 2: Convert to fraction form
    187,170,986.20/280,756,479.30 = 187,170,986.20/x
  3. Step 3: Cross multiply
    187,170,986.20x = 280,756,479.30 × 187,170,986.20
  4. Step 4: Simplify right side
    187,170,986.20x = 52,549,467,112,620,888
  5. Step 5: Solve for x
    x = 52,549,467,112,620,888/187,170,986.20
  6. Step 6: Final answer
    x = 280,756,479.30

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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.