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Finding the Fourth Proportional to 54,100.80, 74,569.68 and 43,369.92

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Solution

The fourth proportional to 54,100.80, 74,569.68 and 43,369.92 is: 59,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,100.80 : 74,569.68 = 43,369.92 : x
  2. Step 2: Convert to fraction form
    54,100.80/74,569.68 = 43,369.92/x
  3. Step 3: Cross multiply
    54,100.80x = 74,569.68 × 43,369.92
  4. Step 4: Simplify right side
    54,100.80x = 3,234,081,056.03
  5. Step 5: Solve for x
    x = 3,234,081,056.03/54,100.80
  6. Step 6: Final answer
    x = 59,778.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.