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Finding the Fourth Proportional to 73,612.89, 110,421.15 and 26,865.75

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Solution

The fourth proportional to 73,612.89, 110,421.15 and 26,865.75 is: 40,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,612.89 : 110,421.15 = 26,865.75 : x
  2. Step 2: Convert to fraction form
    73,612.89/110,421.15 = 26,865.75/x
  3. Step 3: Cross multiply
    73,612.89x = 110,421.15 × 26,865.75
  4. Step 4: Simplify right side
    73,612.89x = 2,966,547,010.61
  5. Step 5: Solve for x
    x = 2,966,547,010.61/73,612.89
  6. Step 6: Final answer
    x = 40,299.29

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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.