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Finding the Fourth Proportional to 372,790.80, 558,748.80 and 159,558.30

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Solution

The fourth proportional to 372,790.80, 558,748.80 and 159,558.30 is: 239,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,790.80 : 558,748.80 = 159,558.30 : x
  2. Step 2: Convert to fraction form
    372,790.80/558,748.80 = 159,558.30/x
  3. Step 3: Cross multiply
    372,790.80x = 558,748.80 × 159,558.30
  4. Step 4: Simplify right side
    372,790.80x = 89,153,008,655.04
  5. Step 5: Solve for x
    x = 89,153,008,655.04/372,790.80
  6. Step 6: Final answer
    x = 239,150.24

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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.