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Finding the Fourth Proportional to 88,679.52, 122,369.40 and 52,862.40

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Solution

The fourth proportional to 88,679.52, 122,369.40 and 52,862.40 is: 72,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,679.52 : 122,369.40 = 52,862.40 : x
  2. Step 2: Convert to fraction form
    88,679.52/122,369.40 = 52,862.40/x
  3. Step 3: Cross multiply
    88,679.52x = 122,369.40 × 52,862.40
  4. Step 4: Simplify right side
    88,679.52x = 6,468,740,170.56
  5. Step 5: Solve for x
    x = 6,468,740,170.56/88,679.52
  6. Step 6: Final answer
    x = 72,945.14

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1.5x scale

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.