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Finding the Fourth Proportional to 110,916.75, 153,065.12 and 60,615.75

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Solution

The fourth proportional to 110,916.75, 153,065.12 and 60,615.75 is: 83,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,916.75 : 153,065.12 = 60,615.75 : x
  2. Step 2: Convert to fraction form
    110,916.75/153,065.12 = 60,615.75/x
  3. Step 3: Cross multiply
    110,916.75x = 153,065.12 × 60,615.75
  4. Step 4: Simplify right side
    110,916.75x = 9,278,156,744.56
  5. Step 5: Solve for x
    x = 9,278,156,744.56/110,916.75
  6. Step 6: Final answer
    x = 83,649.74

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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.