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Finding the Fourth Proportional to 101,140.40, 151,710.60 and 63,742.70

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Solution

The fourth proportional to 101,140.40, 151,710.60 and 63,742.70 is: 95,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,140.40 : 151,710.60 = 63,742.70 : x
  2. Step 2: Convert to fraction form
    101,140.40/151,710.60 = 63,742.70/x
  3. Step 3: Cross multiply
    101,140.40x = 151,710.60 × 63,742.70
  4. Step 4: Simplify right side
    101,140.40x = 9,670,443,262.62
  5. Step 5: Solve for x
    x = 9,670,443,262.62/101,140.40
  6. Step 6: Final answer
    x = 95,614.05

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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.