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Finding the Fourth Proportional to 105,523.70, 158,151.15 and 43,123.70

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Solution

The fourth proportional to 105,523.70, 158,151.15 and 43,123.70 is: 64,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,523.70 : 158,151.15 = 43,123.70 : x
  2. Step 2: Convert to fraction form
    105,523.70/158,151.15 = 43,123.70/x
  3. Step 3: Cross multiply
    105,523.70x = 158,151.15 × 43,123.70
  4. Step 4: Simplify right side
    105,523.70x = 6,820,062,747.26
  5. Step 5: Solve for x
    x = 6,820,062,747.26/105,523.70
  6. Step 6: Final answer
    x = 64,630.63

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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.