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Finding the Fourth Proportional to 110,877.50, 166,119.20 and 63,490.70

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Solution

The fourth proportional to 110,877.50, 166,119.20 and 63,490.70 is: 95,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,877.50 : 166,119.20 = 63,490.70 : x
  2. Step 2: Convert to fraction form
    110,877.50/166,119.20 = 63,490.70/x
  3. Step 3: Cross multiply
    110,877.50x = 166,119.20 × 63,490.70
  4. Step 4: Simplify right side
    110,877.50x = 10,547,023,619.57
  5. Step 5: Solve for x
    x = 10,547,023,619.57/110,877.50
  6. Step 6: Final answer
    x = 95,123.21

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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.