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Finding the Fourth Proportional to 116,419.52, 160,658.08 and 68,672.96

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Solution

The fourth proportional to 116,419.52, 160,658.08 and 68,672.96 is: 94,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,419.52 : 160,658.08 = 68,672.96 : x
  2. Step 2: Convert to fraction form
    116,419.52/160,658.08 = 68,672.96/x
  3. Step 3: Cross multiply
    116,419.52x = 160,658.08 × 68,672.96
  4. Step 4: Simplify right side
    116,419.52x = 11,032,865,901.52
  5. Step 5: Solve for x
    x = 11,032,865,901.52/116,419.52
  6. Step 6: Final answer
    x = 94,768.18

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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.