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Finding the Fourth Proportional to 254,040.89, 381,061.51 and 64,515.47

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Solution

The fourth proportional to 254,040.89, 381,061.51 and 64,515.47 is: 96,773.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,040.89 : 381,061.51 = 64,515.47 : x
  2. Step 2: Convert to fraction form
    254,040.89/381,061.51 = 64,515.47/x
  3. Step 3: Cross multiply
    254,040.89x = 381,061.51 × 64,515.47
  4. Step 4: Simplify right side
    254,040.89x = 24,584,364,463.94
  5. Step 5: Solve for x
    x = 24,584,364,463.94/254,040.89
  6. Step 6: Final answer
    x = 96,773.26

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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.