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Finding the Fourth Proportional to 101,463.60, 152,195.40 and 66,442.80

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Solution

The fourth proportional to 101,463.60, 152,195.40 and 66,442.80 is: 99,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,463.60 : 152,195.40 = 66,442.80 : x
  2. Step 2: Convert to fraction form
    101,463.60/152,195.40 = 66,442.80/x
  3. Step 3: Cross multiply
    101,463.60x = 152,195.40 × 66,442.80
  4. Step 4: Simplify right side
    101,463.60x = 10,112,288,523.12
  5. Step 5: Solve for x
    x = 10,112,288,523.12/101,463.60
  6. Step 6: Final answer
    x = 99,664.20

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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.