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Finding the Fourth Proportional to 114,411.60, 171,565.56 and 74,391.12

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Solution

The fourth proportional to 114,411.60, 171,565.56 and 74,391.12 is: 111,552.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,411.60 : 171,565.56 = 74,391.12 : x
  2. Step 2: Convert to fraction form
    114,411.60/171,565.56 = 74,391.12/x
  3. Step 3: Cross multiply
    114,411.60x = 171,565.56 × 74,391.12
  4. Step 4: Simplify right side
    114,411.60x = 12,762,954,161.83
  5. Step 5: Solve for x
    x = 12,762,954,161.83/114,411.60
  6. Step 6: Final answer
    x = 111,552.97

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1.5x scale

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.