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Finding the Fourth Proportional to 358,995.06, 538,592.38 and 156,608.87

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Solution

The fourth proportional to 358,995.06, 538,592.38 and 156,608.87 is: 234,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,995.06 : 538,592.38 = 156,608.87 : x
  2. Step 2: Convert to fraction form
    358,995.06/538,592.38 = 156,608.87/x
  3. Step 3: Cross multiply
    358,995.06x = 538,592.38 × 156,608.87
  4. Step 4: Simplify right side
    358,995.06x = 84,348,340,937.93
  5. Step 5: Solve for x
    x = 84,348,340,937.93/358,995.06
  6. Step 6: Final answer
    x = 234,956.83

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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.