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Finding the Fourth Proportional to 158,952.70, 238,429.05 and 85,224.70

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Solution

The fourth proportional to 158,952.70, 238,429.05 and 85,224.70 is: 127,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,952.70 : 238,429.05 = 85,224.70 : x
  2. Step 2: Convert to fraction form
    158,952.70/238,429.05 = 85,224.70/x
  3. Step 3: Cross multiply
    158,952.70x = 238,429.05 × 85,224.70
  4. Step 4: Simplify right side
    158,952.70x = 20,320,044,257.54
  5. Step 5: Solve for x
    x = 20,320,044,257.54/158,952.70
  6. Step 6: Final answer
    x = 127,837.05

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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.