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Finding the Fourth Proportional to 101,626.71, 152,378.49 and 45,456.35

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Solution

The fourth proportional to 101,626.71, 152,378.49 and 45,456.35 is: 68,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,626.71 : 152,378.49 = 45,456.35 : x
  2. Step 2: Convert to fraction form
    101,626.71/152,378.49 = 45,456.35/x
  3. Step 3: Cross multiply
    101,626.71x = 152,378.49 × 45,456.35
  4. Step 4: Simplify right side
    101,626.71x = 6,926,569,382.48
  5. Step 5: Solve for x
    x = 6,926,569,382.48/101,626.71
  6. Step 6: Final answer
    x = 68,156.98

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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.