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Finding the Fourth Proportional to 58,920.80, 88,251.60 and 52,354.40

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Solution

The fourth proportional to 58,920.80, 88,251.60 and 52,354.40 is: 78,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,920.80 : 88,251.60 = 52,354.40 : x
  2. Step 2: Convert to fraction form
    58,920.80/88,251.60 = 52,354.40/x
  3. Step 3: Cross multiply
    58,920.80x = 88,251.60 × 52,354.40
  4. Step 4: Simplify right side
    58,920.80x = 4,620,359,567.04
  5. Step 5: Solve for x
    x = 4,620,359,567.04/58,920.80
  6. Step 6: Final answer
    x = 78,416.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.