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Finding the Fourth Proportional to 83,590.84, 125,393.78 and 23,620.05

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Solution

The fourth proportional to 83,590.84, 125,393.78 and 23,620.05 is: 35,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,590.84 : 125,393.78 = 23,620.05 : x
  2. Step 2: Convert to fraction form
    83,590.84/125,393.78 = 23,620.05/x
  3. Step 3: Cross multiply
    83,590.84x = 125,393.78 × 23,620.05
  4. Step 4: Simplify right side
    83,590.84x = 2,961,807,353.29
  5. Step 5: Solve for x
    x = 2,961,807,353.29/83,590.84
  6. Step 6: Final answer
    x = 35,432.20

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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.