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Finding the Fourth Proportional to 147,115.40, 220,500.30 and 68,062.64

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Solution

The fourth proportional to 147,115.40, 220,500.30 and 68,062.64 is: 102,014.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,115.40 : 220,500.30 = 68,062.64 : x
  2. Step 2: Convert to fraction form
    147,115.40/220,500.30 = 68,062.64/x
  3. Step 3: Cross multiply
    147,115.40x = 220,500.30 × 68,062.64
  4. Step 4: Simplify right side
    147,115.40x = 15,007,832,538.79
  5. Step 5: Solve for x
    x = 15,007,832,538.79/147,115.40
  6. Step 6: Final answer
    x = 102,014.01

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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.