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Finding the Fourth Proportional to 104,201.74, 155,387.39 and 103,254.49

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Solution

The fourth proportional to 104,201.74, 155,387.39 and 103,254.49 is: 153,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,201.74 : 155,387.39 = 103,254.49 : x
  2. Step 2: Convert to fraction form
    104,201.74/155,387.39 = 103,254.49/x
  3. Step 3: Cross multiply
    104,201.74x = 155,387.39 × 103,254.49
  4. Step 4: Simplify right side
    104,201.74x = 16,044,445,706.88
  5. Step 5: Solve for x
    x = 16,044,445,706.88/104,201.74
  6. Step 6: Final answer
    x = 153,974.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.