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Finding the Fourth Proportional to 240,368.61, 331,713.68 and 132,945.91

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Solution

The fourth proportional to 240,368.61, 331,713.68 and 132,945.91 is: 183,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,368.61 : 331,713.68 = 132,945.91 : x
  2. Step 2: Convert to fraction form
    240,368.61/331,713.68 = 132,945.91/x
  3. Step 3: Cross multiply
    240,368.61x = 331,713.68 × 132,945.91
  4. Step 4: Simplify right side
    240,368.61x = 44,099,976,300.86
  5. Step 5: Solve for x
    x = 44,099,976,300.86/240,368.61
  6. Step 6: Final answer
    x = 183,468.11

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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.