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Finding the Fourth Proportional to 70,683,053.60, 106,024,580.40 and 51,551,177.60

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Solution

The fourth proportional to 70,683,053.60, 106,024,580.40 and 51,551,177.60 is: 77,326,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,683,053.60 : 106,024,580.40 = 51,551,177.60 : x
  2. Step 2: Convert to fraction form
    70,683,053.60/106,024,580.40 = 51,551,177.60/x
  3. Step 3: Cross multiply
    70,683,053.60x = 106,024,580.40 × 51,551,177.60
  4. Step 4: Simplify right side
    70,683,053.60x = 5,465,691,974,165,880
  5. Step 5: Solve for x
    x = 5,465,691,974,165,880/70,683,053.60
  6. Step 6: Final answer
    x = 77,326,766.40

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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.