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Finding the Fourth Proportional to 151,473.60, 209,049.12 and 91,063.92

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Solution

The fourth proportional to 151,473.60, 209,049.12 and 91,063.92 is: 125,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,473.60 : 209,049.12 = 91,063.92 : x
  2. Step 2: Convert to fraction form
    151,473.60/209,049.12 = 91,063.92/x
  3. Step 3: Cross multiply
    151,473.60x = 209,049.12 × 91,063.92
  4. Step 4: Simplify right side
    151,473.60x = 19,036,832,339.75
  5. Step 5: Solve for x
    x = 19,036,832,339.75/151,473.60
  6. Step 6: Final answer
    x = 125,677.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.