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Finding the Fourth Proportional to 101,510.85, 152,180.64 and 63,988.20

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Solution

The fourth proportional to 101,510.85, 152,180.64 and 63,988.20 is: 95,928.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,510.85 : 152,180.64 = 63,988.20 : x
  2. Step 2: Convert to fraction form
    101,510.85/152,180.64 = 63,988.20/x
  3. Step 3: Cross multiply
    101,510.85x = 152,180.64 × 63,988.20
  4. Step 4: Simplify right side
    101,510.85x = 9,737,765,228.45
  5. Step 5: Solve for x
    x = 9,737,765,228.45/101,510.85
  6. Step 6: Final answer
    x = 95,928.32

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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.