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Finding the Fourth Proportional to 119,044.80, 178,588.80 and 59,731.20

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Solution

The fourth proportional to 119,044.80, 178,588.80 and 59,731.20 is: 89,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,044.80 : 178,588.80 = 59,731.20 : x
  2. Step 2: Convert to fraction form
    119,044.80/178,588.80 = 59,731.20/x
  3. Step 3: Cross multiply
    119,044.80x = 178,588.80 × 59,731.20
  4. Step 4: Simplify right side
    119,044.80x = 10,667,323,330.56
  5. Step 5: Solve for x
    x = 10,667,323,330.56/119,044.80
  6. Step 6: Final answer
    x = 89,607.64

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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.