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Finding the Fourth Proportional to 105,164.40, 157,439.40 and 94,105.20

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Solution

The fourth proportional to 105,164.40, 157,439.40 and 94,105.20 is: 140,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,164.40 : 157,439.40 = 94,105.20 : x
  2. Step 2: Convert to fraction form
    105,164.40/157,439.40 = 94,105.20/x
  3. Step 3: Cross multiply
    105,164.40x = 157,439.40 × 94,105.20
  4. Step 4: Simplify right side
    105,164.40x = 14,815,866,224.88
  5. Step 5: Solve for x
    x = 14,815,866,224.88/105,164.40
  6. Step 6: Final answer
    x = 140,882.91

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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.