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Finding the Fourth Proportional to 119,332.72, 179,008.80 and 39,385.72

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Solution

The fourth proportional to 119,332.72, 179,008.80 and 39,385.72 is: 59,081.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,332.72 : 179,008.80 = 39,385.72 : x
  2. Step 2: Convert to fraction form
    119,332.72/179,008.80 = 39,385.72/x
  3. Step 3: Cross multiply
    119,332.72x = 179,008.80 × 39,385.72
  4. Step 4: Simplify right side
    119,332.72x = 7,050,390,474.34
  5. Step 5: Solve for x
    x = 7,050,390,474.34/119,332.72
  6. Step 6: Final answer
    x = 59,081.79

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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.