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Finding the Fourth Proportional to 72,270.16, 108,264.96 and 53,260.27

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Solution

The fourth proportional to 72,270.16, 108,264.96 and 53,260.27 is: 79,787.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,270.16 : 108,264.96 = 53,260.27 : x
  2. Step 2: Convert to fraction form
    72,270.16/108,264.96 = 53,260.27/x
  3. Step 3: Cross multiply
    72,270.16x = 108,264.96 × 53,260.27
  4. Step 4: Simplify right side
    72,270.16x = 5,766,221,001.14
  5. Step 5: Solve for x
    x = 5,766,221,001.14/72,270.16
  6. Step 6: Final answer
    x = 79,787.02

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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.