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Finding the Fourth Proportional to 111,480.97, 153,799.94 and 63,708.69

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Solution

The fourth proportional to 111,480.97, 153,799.94 and 63,708.69 is: 87,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,480.97 : 153,799.94 = 63,708.69 : x
  2. Step 2: Convert to fraction form
    111,480.97/153,799.94 = 63,708.69/x
  3. Step 3: Cross multiply
    111,480.97x = 153,799.94 × 63,708.69
  4. Step 4: Simplify right side
    111,480.97x = 9,798,391,930.48
  5. Step 5: Solve for x
    x = 9,798,391,930.48/111,480.97
  6. Step 6: Final answer
    x = 87,892.96

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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.