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Finding the Fourth Proportional to 118,061.73, 177,054.21 and 39,154.77

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Solution

The fourth proportional to 118,061.73, 177,054.21 and 39,154.77 is: 58,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,061.73 : 177,054.21 = 39,154.77 : x
  2. Step 2: Convert to fraction form
    118,061.73/177,054.21 = 39,154.77/x
  3. Step 3: Cross multiply
    118,061.73x = 177,054.21 × 39,154.77
  4. Step 4: Simplify right side
    118,061.73x = 6,932,516,870.08
  5. Step 5: Solve for x
    x = 6,932,516,870.08/118,061.73
  6. Step 6: Final answer
    x = 58,719.42

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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.