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Finding the Fourth Proportional to 158,874.40, 238,190.10 and 80,045.20

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Solution

The fourth proportional to 158,874.40, 238,190.10 and 80,045.20 is: 120,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,874.40 : 238,190.10 = 80,045.20 : x
  2. Step 2: Convert to fraction form
    158,874.40/238,190.10 = 80,045.20/x
  3. Step 3: Cross multiply
    158,874.40x = 238,190.10 × 80,045.20
  4. Step 4: Simplify right side
    158,874.40x = 19,065,974,192.52
  5. Step 5: Solve for x
    x = 19,065,974,192.52/158,874.40
  6. Step 6: Final answer
    x = 120,006.59

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1.5x scale

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.