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Finding the Fourth Proportional to 70,996,865.70, 106,495,298.55 and 63,344,115.30

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Solution

The fourth proportional to 70,996,865.70, 106,495,298.55 and 63,344,115.30 is: 95,016,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,996,865.70 : 106,495,298.55 = 63,344,115.30 : x
  2. Step 2: Convert to fraction form
    70,996,865.70/106,495,298.55 = 63,344,115.30/x
  3. Step 3: Cross multiply
    70,996,865.70x = 106,495,298.55 × 63,344,115.30
  4. Step 4: Simplify right side
    70,996,865.70x = 6,745,850,470,259,122
  5. Step 5: Solve for x
    x = 6,745,850,470,259,122/70,996,865.70
  6. Step 6: Final answer
    x = 95,016,172.95

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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.