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Finding the Fourth Proportional to 88,372.80, 121,937.67 and 52,571.88

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Solution

The fourth proportional to 88,372.80, 121,937.67 and 52,571.88 is: 72,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,372.80 : 121,937.67 = 52,571.88 : x
  2. Step 2: Convert to fraction form
    88,372.80/121,937.67 = 52,571.88/x
  3. Step 3: Cross multiply
    88,372.80x = 121,937.67 × 52,571.88
  4. Step 4: Simplify right side
    88,372.80x = 6,410,492,554.72
  5. Step 5: Solve for x
    x = 6,410,492,554.72/88,372.80
  6. Step 6: Final answer
    x = 72,539.20

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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.