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Finding the Fourth Proportional to 103,614.90, 155,422.35 and 94,974.90

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Solution

The fourth proportional to 103,614.90, 155,422.35 and 94,974.90 is: 142,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.90 : 155,422.35 = 94,974.90 : x
  2. Step 2: Convert to fraction form
    103,614.90/155,422.35 = 94,974.90/x
  3. Step 3: Cross multiply
    103,614.90x = 155,422.35 × 94,974.90
  4. Step 4: Simplify right side
    103,614.90x = 14,761,222,149.02
  5. Step 5: Solve for x
    x = 14,761,222,149.02/103,614.90
  6. Step 6: Final answer
    x = 142,462.35

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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.