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Finding the Fourth Proportional to 101,711.79, 152,571.33 and 42,465.96

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Solution

The fourth proportional to 101,711.79, 152,571.33 and 42,465.96 is: 63,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,711.79 : 152,571.33 = 42,465.96 : x
  2. Step 2: Convert to fraction form
    101,711.79/152,571.33 = 42,465.96/x
  3. Step 3: Cross multiply
    101,711.79x = 152,571.33 × 42,465.96
  4. Step 4: Simplify right side
    101,711.79x = 6,479,087,996.93
  5. Step 5: Solve for x
    x = 6,479,087,996.93/101,711.79
  6. Step 6: Final answer
    x = 63,700.46

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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.