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Finding the Fourth Proportional to 111,341.52, 153,648.12 and 63,593.88

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Solution

The fourth proportional to 111,341.52, 153,648.12 and 63,593.88 is: 87,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,341.52 : 153,648.12 = 63,593.88 : x
  2. Step 2: Convert to fraction form
    111,341.52/153,648.12 = 63,593.88/x
  3. Step 3: Cross multiply
    111,341.52x = 153,648.12 × 63,593.88
  4. Step 4: Simplify right side
    111,341.52x = 9,771,080,105.51
  5. Step 5: Solve for x
    x = 9,771,080,105.51/111,341.52
  6. Step 6: Final answer
    x = 87,757.74

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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.