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Finding the Fourth Proportional to 101,528.52, 152,328.84 and 45,363.48

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Solution

The fourth proportional to 101,528.52, 152,328.84 and 45,363.48 is: 68,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,528.52 : 152,328.84 = 45,363.48 : x
  2. Step 2: Convert to fraction form
    101,528.52/152,328.84 = 45,363.48/x
  3. Step 3: Cross multiply
    101,528.52x = 152,328.84 × 45,363.48
  4. Step 4: Simplify right side
    101,528.52x = 6,910,166,286.76
  5. Step 5: Solve for x
    x = 6,910,166,286.76/101,528.52
  6. Step 6: Final answer
    x = 68,061.33

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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.