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Finding the Fourth Proportional to 117,306.96, 161,854.20 and 69,558

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Solution

The fourth proportional to 117,306.96, 161,854.20 and 69,558 is: 95,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,306.96 : 161,854.20 = 69,558 : x
  2. Step 2: Convert to fraction form
    117,306.96/161,854.20 = 69,558/x
  3. Step 3: Cross multiply
    117,306.96x = 161,854.20 × 69,558
  4. Step 4: Simplify right side
    117,306.96x = 11,258,254,443.60
  5. Step 5: Solve for x
    x = 11,258,254,443.60/117,306.96
  6. Step 6: Final answer
    x = 95,972.60

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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.