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Finding the Fourth Proportional to 111,243.55, 153,543.57 and 63,524.58

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Solution

The fourth proportional to 111,243.55, 153,543.57 and 63,524.58 is: 87,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,243.55 : 153,543.57 = 63,524.58 : x
  2. Step 2: Convert to fraction form
    111,243.55/153,543.57 = 63,524.58/x
  3. Step 3: Cross multiply
    111,243.55x = 153,543.57 × 63,524.58
  4. Step 4: Simplify right side
    111,243.55x = 9,753,790,795.95
  5. Step 5: Solve for x
    x = 9,753,790,795.95/111,243.55
  6. Step 6: Final answer
    x = 87,679.61

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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.