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Finding the Fourth Proportional to 372,343.02, 558,329.93 and 132,420.94

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Solution

The fourth proportional to 372,343.02, 558,329.93 and 132,420.94 is: 198,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,343.02 : 558,329.93 = 132,420.94 : x
  2. Step 2: Convert to fraction form
    372,343.02/558,329.93 = 132,420.94/x
  3. Step 3: Cross multiply
    372,343.02x = 558,329.93 × 132,420.94
  4. Step 4: Simplify right side
    372,343.02x = 73,934,574,160.73
  5. Step 5: Solve for x
    x = 73,934,574,160.73/372,343.02
  6. Step 6: Final answer
    x = 198,565.76

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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.