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Finding the Fourth Proportional to 159,978.58, 240,037.88 and 75,798.87

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Solution

The fourth proportional to 159,978.58, 240,037.88 and 75,798.87 is: 113,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,978.58 : 240,037.88 = 75,798.87 : x
  2. Step 2: Convert to fraction form
    159,978.58/240,037.88 = 75,798.87/x
  3. Step 3: Cross multiply
    159,978.58x = 240,037.88 × 75,798.87
  4. Step 4: Simplify right side
    159,978.58x = 18,194,600,061.20
  5. Step 5: Solve for x
    x = 18,194,600,061.20/159,978.58
  6. Step 6: Final answer
    x = 113,731.48

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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.