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Finding the Fourth Proportional to 117,412.60, 176,117.30 and 38,529.40

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Solution

The fourth proportional to 117,412.60, 176,117.30 and 38,529.40 is: 57,793.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,412.60 : 176,117.30 = 38,529.40 : x
  2. Step 2: Convert to fraction form
    117,412.60/176,117.30 = 38,529.40/x
  3. Step 3: Cross multiply
    117,412.60x = 176,117.30 × 38,529.40
  4. Step 4: Simplify right side
    117,412.60x = 6,785,693,898.62
  5. Step 5: Solve for x
    x = 6,785,693,898.62/117,412.60
  6. Step 6: Final answer
    x = 57,793.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.