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Finding the Fourth Proportional to 124,375.50, 171,638.19 and 67,787.01

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Solution

The fourth proportional to 124,375.50, 171,638.19 and 67,787.01 is: 93,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,375.50 : 171,638.19 = 67,787.01 : x
  2. Step 2: Convert to fraction form
    124,375.50/171,638.19 = 67,787.01/x
  3. Step 3: Cross multiply
    124,375.50x = 171,638.19 × 67,787.01
  4. Step 4: Simplify right side
    124,375.50x = 11,634,839,701.91
  5. Step 5: Solve for x
    x = 11,634,839,701.91/124,375.50
  6. Step 6: Final answer
    x = 93,546.07

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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.