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Finding the Fourth Proportional to 118,478.64, 177,727.14 and 39,593.15

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Solution

The fourth proportional to 118,478.64, 177,727.14 and 39,593.15 is: 59,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,478.64 : 177,727.14 = 39,593.15 : x
  2. Step 2: Convert to fraction form
    118,478.64/177,727.14 = 39,593.15/x
  3. Step 3: Cross multiply
    118,478.64x = 177,727.14 × 39,593.15
  4. Step 4: Simplify right side
    118,478.64x = 7,036,776,424.46
  5. Step 5: Solve for x
    x = 7,036,776,424.46/118,478.64
  6. Step 6: Final answer
    x = 59,392.79

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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.