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Finding the Fourth Proportional to 110,630.95, 152,631.35 and 65,286.24

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Solution

The fourth proportional to 110,630.95, 152,631.35 and 65,286.24 is: 90,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,630.95 : 152,631.35 = 65,286.24 : x
  2. Step 2: Convert to fraction form
    110,630.95/152,631.35 = 65,286.24/x
  3. Step 3: Cross multiply
    110,630.95x = 152,631.35 × 65,286.24
  4. Step 4: Simplify right side
    110,630.95x = 9,964,727,002.77
  5. Step 5: Solve for x
    x = 9,964,727,002.77/110,630.95
  6. Step 6: Final answer
    x = 90,071.78

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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.