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Finding the Fourth Proportional to 59,907.80, 89,742.90 and 52,520.60

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Solution

The fourth proportional to 59,907.80, 89,742.90 and 52,520.60 is: 78,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,907.80 : 89,742.90 = 52,520.60 : x
  2. Step 2: Convert to fraction form
    59,907.80/89,742.90 = 52,520.60/x
  3. Step 3: Cross multiply
    59,907.80x = 89,742.90 × 52,520.60
  4. Step 4: Simplify right side
    59,907.80x = 4,713,350,953.74
  5. Step 5: Solve for x
    x = 4,713,350,953.74/59,907.80
  6. Step 6: Final answer
    x = 78,676.75

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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.