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Finding the Fourth Proportional to 110,605.28, 152,630.88 and 65,297.86

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Solution

The fourth proportional to 110,605.28, 152,630.88 and 65,297.86 is: 90,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,605.28 : 152,630.88 = 65,297.86 : x
  2. Step 2: Convert to fraction form
    110,605.28/152,630.88 = 65,297.86/x
  3. Step 3: Cross multiply
    110,605.28x = 152,630.88 × 65,297.86
  4. Step 4: Simplify right side
    110,605.28x = 9,966,469,833.92
  5. Step 5: Solve for x
    x = 9,966,469,833.92/110,605.28
  6. Step 6: Final answer
    x = 90,108.45

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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.