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Finding the Fourth Proportional to 52,641,892.80, 78,850,864.80 and 43,683,940.80

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Solution

The fourth proportional to 52,641,892.80, 78,850,864.80 and 43,683,940.80 is: 65,432,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,641,892.80 : 78,850,864.80 = 43,683,940.80 : x
  2. Step 2: Convert to fraction form
    52,641,892.80/78,850,864.80 = 43,683,940.80/x
  3. Step 3: Cross multiply
    52,641,892.80x = 78,850,864.80 × 43,683,940.80
  4. Step 4: Simplify right side
    52,641,892.80x = 3,444,516,509,952,003.50
  5. Step 5: Solve for x
    x = 3,444,516,509,952,003.50/52,641,892.80
  6. Step 6: Final answer
    x = 65,432,991.23

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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.