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Finding the Fourth Proportional to 372,192.32, 558,343.83 and 172,532.89

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Solution

The fourth proportional to 372,192.32, 558,343.83 and 172,532.89 is: 258,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,192.32 : 558,343.83 = 172,532.89 : x
  2. Step 2: Convert to fraction form
    372,192.32/558,343.83 = 172,532.89/x
  3. Step 3: Cross multiply
    372,192.32x = 558,343.83 × 172,532.89
  4. Step 4: Simplify right side
    372,192.32x = 96,332,672,807.81
  5. Step 5: Solve for x
    x = 96,332,672,807.81/372,192.32
  6. Step 6: Final answer
    x = 258,824.99

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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.