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Finding the Fourth Proportional to 110,692.52, 152,751.12 and 65,385.18

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Solution

The fourth proportional to 110,692.52, 152,751.12 and 65,385.18 is: 90,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,692.52 : 152,751.12 = 65,385.18 : x
  2. Step 2: Convert to fraction form
    110,692.52/152,751.12 = 65,385.18/x
  3. Step 3: Cross multiply
    110,692.52x = 152,751.12 × 65,385.18
  4. Step 4: Simplify right side
    110,692.52x = 9,987,659,476.40
  5. Step 5: Solve for x
    x = 9,987,659,476.40/110,692.52
  6. Step 6: Final answer
    x = 90,228.86

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Double scale
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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.