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Finding the Fourth Proportional to 118,409.73, 177,637.92 and 38,432.76

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Solution

The fourth proportional to 118,409.73, 177,637.92 and 38,432.76 is: 57,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,409.73 : 177,637.92 = 38,432.76 : x
  2. Step 2: Convert to fraction form
    118,409.73/177,637.92 = 38,432.76/x
  3. Step 3: Cross multiply
    118,409.73x = 177,637.92 × 38,432.76
  4. Step 4: Simplify right side
    118,409.73x = 6,827,115,546.26
  5. Step 5: Solve for x
    x = 6,827,115,546.26/118,409.73
  6. Step 6: Final answer
    x = 57,656.71

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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.