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Finding the Fourth Proportional to 113,040.33, 169,560.51 and 42,919.68

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Solution

The fourth proportional to 113,040.33, 169,560.51 and 42,919.68 is: 64,379.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,040.33 : 169,560.51 = 42,919.68 : x
  2. Step 2: Convert to fraction form
    113,040.33/169,560.51 = 42,919.68/x
  3. Step 3: Cross multiply
    113,040.33x = 169,560.51 × 42,919.68
  4. Step 4: Simplify right side
    113,040.33x = 7,277,482,829.84
  5. Step 5: Solve for x
    x = 7,277,482,829.84/113,040.33
  6. Step 6: Final answer
    x = 64,379.53

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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.