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Finding the Fourth Proportional to 59,286.80, 88,800.60 and 52,720.40

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Solution

The fourth proportional to 59,286.80, 88,800.60 and 52,720.40 is: 78,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,286.80 : 88,800.60 = 52,720.40 : x
  2. Step 2: Convert to fraction form
    59,286.80/88,800.60 = 52,720.40/x
  3. Step 3: Cross multiply
    59,286.80x = 88,800.60 × 52,720.40
  4. Step 4: Simplify right side
    59,286.80x = 4,681,603,152.24
  5. Step 5: Solve for x
    x = 4,681,603,152.24/59,286.80
  6. Step 6: Final answer
    x = 78,965.35

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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.