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Finding the Fourth Proportional to 179,688.60, 269,532.90 and 61,342.20

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Solution

The fourth proportional to 179,688.60, 269,532.90 and 61,342.20 is: 92,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,688.60 : 269,532.90 = 61,342.20 : x
  2. Step 2: Convert to fraction form
    179,688.60/269,532.90 = 61,342.20/x
  3. Step 3: Cross multiply
    179,688.60x = 269,532.90 × 61,342.20
  4. Step 4: Simplify right side
    179,688.60x = 16,533,741,058.38
  5. Step 5: Solve for x
    x = 16,533,741,058.38/179,688.60
  6. Step 6: Final answer
    x = 92,013.30

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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.