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Finding the Fourth Proportional to 110,469.20, 152,464.81 and 65,152.17

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Solution

The fourth proportional to 110,469.20, 152,464.81 and 65,152.17 is: 89,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,469.20 : 152,464.81 = 65,152.17 : x
  2. Step 2: Convert to fraction form
    110,469.20/152,464.81 = 65,152.17/x
  3. Step 3: Cross multiply
    110,469.20x = 152,464.81 × 65,152.17
  4. Step 4: Simplify right side
    110,469.20x = 9,933,413,220.14
  5. Step 5: Solve for x
    x = 9,933,413,220.14/110,469.20
  6. Step 6: Final answer
    x = 89,920.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.