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Finding the Fourth Proportional to 62,606,611.80, 93,909,917.70 and 38,420,141.40

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Solution

The fourth proportional to 62,606,611.80, 93,909,917.70 and 38,420,141.40 is: 57,630,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,606,611.80 : 93,909,917.70 = 38,420,141.40 : x
  2. Step 2: Convert to fraction form
    62,606,611.80/93,909,917.70 = 38,420,141.40/x
  3. Step 3: Cross multiply
    62,606,611.80x = 93,909,917.70 × 38,420,141.40
  4. Step 4: Simplify right side
    62,606,611.80x = 3,608,032,316,896,363
  5. Step 5: Solve for x
    x = 3,608,032,316,896,363/62,606,611.80
  6. Step 6: Final answer
    x = 57,630,212.10

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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.