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Finding the Fourth Proportional to 98,167.52, 135,425.58 and 57,853.82

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Solution

The fourth proportional to 98,167.52, 135,425.58 and 57,853.82 is: 79,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,167.52 : 135,425.58 = 57,853.82 : x
  2. Step 2: Convert to fraction form
    98,167.52/135,425.58 = 57,853.82/x
  3. Step 3: Cross multiply
    98,167.52x = 135,425.58 × 57,853.82
  4. Step 4: Simplify right side
    98,167.52x = 7,834,887,128.72
  5. Step 5: Solve for x
    x = 7,834,887,128.72/98,167.52
  6. Step 6: Final answer
    x = 79,811.40

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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.