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Finding the Fourth Proportional to 101,244.75, 151,785.11 and 42,124.67

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Solution

The fourth proportional to 101,244.75, 151,785.11 and 42,124.67 is: 63,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,244.75 : 151,785.11 = 42,124.67 : x
  2. Step 2: Convert to fraction form
    101,244.75/151,785.11 = 42,124.67/x
  3. Step 3: Cross multiply
    101,244.75x = 151,785.11 × 42,124.67
  4. Step 4: Simplify right side
    101,244.75x = 6,393,897,669.66
  5. Step 5: Solve for x
    x = 6,393,897,669.66/101,244.75
  6. Step 6: Final answer
    x = 63,152.88

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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.