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Finding the Fourth Proportional to 119,177.28, 178,742.28 and 59,143.11

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Solution

The fourth proportional to 119,177.28, 178,742.28 and 59,143.11 is: 88,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,177.28 : 178,742.28 = 59,143.11 : x
  2. Step 2: Convert to fraction form
    119,177.28/178,742.28 = 59,143.11/x
  3. Step 3: Cross multiply
    119,177.28x = 178,742.28 × 59,143.11
  4. Step 4: Simplify right side
    119,177.28x = 10,571,374,327.69
  5. Step 5: Solve for x
    x = 10,571,374,327.69/119,177.28
  6. Step 6: Final answer
    x = 88,702.93

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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.