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Finding the Fourth Proportional to 99,874.55, 137,810.50 and 59,033

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Solution

The fourth proportional to 99,874.55, 137,810.50 and 59,033 is: 81,455.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,874.55 : 137,810.50 = 59,033 : x
  2. Step 2: Convert to fraction form
    99,874.55/137,810.50 = 59,033/x
  3. Step 3: Cross multiply
    99,874.55x = 137,810.50 × 59,033
  4. Step 4: Simplify right side
    99,874.55x = 8,135,367,246.50
  5. Step 5: Solve for x
    x = 8,135,367,246.50/99,874.55
  6. Step 6: Final answer
    x = 81,455.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.