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Finding the Fourth Proportional to 159,690.72, 239,037.84 and 117,618.30

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Solution

The fourth proportional to 159,690.72, 239,037.84 and 117,618.30 is: 176,060.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,690.72 : 239,037.84 = 117,618.30 : x
  2. Step 2: Convert to fraction form
    159,690.72/239,037.84 = 117,618.30/x
  3. Step 3: Cross multiply
    159,690.72x = 239,037.84 × 117,618.30
  4. Step 4: Simplify right side
    159,690.72x = 28,115,224,376.47
  5. Step 5: Solve for x
    x = 28,115,224,376.47/159,690.72
  6. Step 6: Final answer
    x = 176,060.48

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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.