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Finding the Fourth Proportional to 88,661.88, 122,369.22 and 52,854.20

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Solution

The fourth proportional to 88,661.88, 122,369.22 and 52,854.20 is: 72,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,661.88 : 122,369.22 = 52,854.20 : x
  2. Step 2: Convert to fraction form
    88,661.88/122,369.22 = 52,854.20/x
  3. Step 3: Cross multiply
    88,661.88x = 122,369.22 × 52,854.20
  4. Step 4: Simplify right side
    88,661.88x = 6,467,727,227.72
  5. Step 5: Solve for x
    x = 6,467,727,227.72/88,661.88
  6. Step 6: Final answer
    x = 72,948.23

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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.