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Finding the Fourth Proportional to 70,961,523.20, 106,442,284.80 and 63,781,164.80

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Solution

The fourth proportional to 70,961,523.20, 106,442,284.80 and 63,781,164.80 is: 95,671,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,961,523.20 : 106,442,284.80 = 63,781,164.80 : x
  2. Step 2: Convert to fraction form
    70,961,523.20/106,442,284.80 = 63,781,164.80/x
  3. Step 3: Cross multiply
    70,961,523.20x = 106,442,284.80 × 63,781,164.80
  4. Step 4: Simplify right side
    70,961,523.20x = 6,789,012,908,517,335
  5. Step 5: Solve for x
    x = 6,789,012,908,517,335/70,961,523.20
  6. Step 6: Final answer
    x = 95,671,747.20

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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.