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Finding the Fourth Proportional to 88,204.80, 121,720.32 and 52,394.88

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Solution

The fourth proportional to 88,204.80, 121,720.32 and 52,394.88 is: 72,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,204.80 : 121,720.32 = 52,394.88 : x
  2. Step 2: Convert to fraction form
    88,204.80/121,720.32 = 52,394.88/x
  3. Step 3: Cross multiply
    88,204.80x = 121,720.32 × 52,394.88
  4. Step 4: Simplify right side
    88,204.80x = 6,377,521,559.96
  5. Step 5: Solve for x
    x = 6,377,521,559.96/88,204.80
  6. Step 6: Final answer
    x = 72,303.57

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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.