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Finding the Fourth Proportional to 71,284,895.04, 98,373,250.08 and 38,689,851.20

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Solution

The fourth proportional to 71,284,895.04, 98,373,250.08 and 38,689,851.20 is: 53,392,046.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,284,895.04 : 98,373,250.08 = 38,689,851.20 : x
  2. Step 2: Convert to fraction form
    71,284,895.04/98,373,250.08 = 38,689,851.20/x
  3. Step 3: Cross multiply
    71,284,895.04x = 98,373,250.08 × 38,689,851.20
  4. Step 4: Simplify right side
    71,284,895.04x = 3,806,046,407,655,588.50
  5. Step 5: Solve for x
    x = 3,806,046,407,655,588.50/71,284,895.04
  6. Step 6: Final answer
    x = 53,392,046.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.