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Finding the Fourth Proportional to 89,793.40, 134,625.30 and 58,646.20

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Solution

The fourth proportional to 89,793.40, 134,625.30 and 58,646.20 is: 87,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,793.40 : 134,625.30 = 58,646.20 : x
  2. Step 2: Convert to fraction form
    89,793.40/134,625.30 = 58,646.20/x
  3. Step 3: Cross multiply
    89,793.40x = 134,625.30 × 58,646.20
  4. Step 4: Simplify right side
    89,793.40x = 7,895,262,268.86
  5. Step 5: Solve for x
    x = 7,895,262,268.86/89,793.40
  6. Step 6: Final answer
    x = 87,926.98

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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.