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Finding the Fourth Proportional to 114,290.70, 171,144.45 and 90,962.70

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Solution

The fourth proportional to 114,290.70, 171,144.45 and 90,962.70 is: 136,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,290.70 : 171,144.45 = 90,962.70 : x
  2. Step 2: Convert to fraction form
    114,290.70/171,144.45 = 90,962.70/x
  3. Step 3: Cross multiply
    114,290.70x = 171,144.45 × 90,962.70
  4. Step 4: Simplify right side
    114,290.70x = 15,567,761,262.02
  5. Step 5: Solve for x
    x = 15,567,761,262.02/114,290.70
  6. Step 6: Final answer
    x = 136,211.97

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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.