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Finding the Fourth Proportional to 80,562.69, 111,207.54 and 53,695.41

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Solution

The fourth proportional to 80,562.69, 111,207.54 and 53,695.41 is: 74,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,562.69 : 111,207.54 = 53,695.41 : x
  2. Step 2: Convert to fraction form
    80,562.69/111,207.54 = 53,695.41/x
  3. Step 3: Cross multiply
    80,562.69x = 111,207.54 × 53,695.41
  4. Step 4: Simplify right side
    80,562.69x = 5,971,334,455.39
  5. Step 5: Solve for x
    x = 5,971,334,455.39/80,562.69
  6. Step 6: Final answer
    x = 74,120.35

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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.