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Finding the Fourth Proportional to 111,064.97, 153,265.87 and 63,333.70

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Solution

The fourth proportional to 111,064.97, 153,265.87 and 63,333.70 is: 87,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,064.97 : 153,265.87 = 63,333.70 : x
  2. Step 2: Convert to fraction form
    111,064.97/153,265.87 = 63,333.70/x
  3. Step 3: Cross multiply
    111,064.97x = 153,265.87 × 63,333.70
  4. Step 4: Simplify right side
    111,064.97x = 9,706,894,326.82
  5. Step 5: Solve for x
    x = 9,706,894,326.82/111,064.97
  6. Step 6: Final answer
    x = 87,398.34

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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.