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Finding the Fourth Proportional to 70,996,974.20, 106,495,461.30 and 63,344,223.80

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Solution

The fourth proportional to 70,996,974.20, 106,495,461.30 and 63,344,223.80 is: 95,016,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,996,974.20 : 106,495,461.30 = 63,344,223.80 : x
  2. Step 2: Convert to fraction form
    70,996,974.20/106,495,461.30 = 63,344,223.80/x
  3. Step 3: Cross multiply
    70,996,974.20x = 106,495,461.30 × 63,344,223.80
  4. Step 4: Simplify right side
    70,996,974.20x = 6,745,872,334,271,438
  5. Step 5: Solve for x
    x = 6,745,872,334,271,438/70,996,974.20
  6. Step 6: Final answer
    x = 95,016,335.70

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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.