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Finding the Fourth Proportional to 136,886.60, 205,232.70 and 52,614.20

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Solution

The fourth proportional to 136,886.60, 205,232.70 and 52,614.20 is: 78,883.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,886.60 : 205,232.70 = 52,614.20 : x
  2. Step 2: Convert to fraction form
    136,886.60/205,232.70 = 52,614.20/x
  3. Step 3: Cross multiply
    136,886.60x = 205,232.70 × 52,614.20
  4. Step 4: Simplify right side
    136,886.60x = 10,798,154,324.34
  5. Step 5: Solve for x
    x = 10,798,154,324.34/136,886.60
  6. Step 6: Final answer
    x = 78,883.94

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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.