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Finding the Fourth Proportional to 124,013.76, 171,223.50 and 83,239.04

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Solution

The fourth proportional to 124,013.76, 171,223.50 and 83,239.04 is: 114,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,013.76 : 171,223.50 = 83,239.04 : x
  2. Step 2: Convert to fraction form
    124,013.76/171,223.50 = 83,239.04/x
  3. Step 3: Cross multiply
    124,013.76x = 171,223.50 × 83,239.04
  4. Step 4: Simplify right side
    124,013.76x = 14,252,479,765.44
  5. Step 5: Solve for x
    x = 14,252,479,765.44/124,013.76
  6. Step 6: Final answer
    x = 114,926.60

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1.5x scale

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.