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Finding the Fourth Proportional to 239,320.89, 358,642.89 and 132,751.76

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Solution

The fourth proportional to 239,320.89, 358,642.89 and 132,751.76 is: 198,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,320.89 : 358,642.89 = 132,751.76 : x
  2. Step 2: Convert to fraction form
    239,320.89/358,642.89 = 132,751.76/x
  3. Step 3: Cross multiply
    239,320.89x = 358,642.89 × 132,751.76
  4. Step 4: Simplify right side
    239,320.89x = 47,610,473,065.77
  5. Step 5: Solve for x
    x = 47,610,473,065.77/239,320.89
  6. Step 6: Final answer
    x = 198,939.90

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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.