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Finding the Fourth Proportional to 151,167.40, 226,742.70 and 45,978.10

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Solution

The fourth proportional to 151,167.40, 226,742.70 and 45,978.10 is: 68,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,167.40 : 226,742.70 = 45,978.10 : x
  2. Step 2: Convert to fraction form
    151,167.40/226,742.70 = 45,978.10/x
  3. Step 3: Cross multiply
    151,167.40x = 226,742.70 × 45,978.10
  4. Step 4: Simplify right side
    151,167.40x = 10,425,198,534.87
  5. Step 5: Solve for x
    x = 10,425,198,534.87/151,167.40
  6. Step 6: Final answer
    x = 68,964.60

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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.