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Finding the Fourth Proportional to 141,632.70, 195,458.70 and 77,976.42

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Solution

The fourth proportional to 141,632.70, 195,458.70 and 77,976.42 is: 107,610.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,632.70 : 195,458.70 = 77,976.42 : x
  2. Step 2: Convert to fraction form
    141,632.70/195,458.70 = 77,976.42/x
  3. Step 3: Cross multiply
    141,632.70x = 195,458.70 × 77,976.42
  4. Step 4: Simplify right side
    141,632.70x = 15,241,169,683.85
  5. Step 5: Solve for x
    x = 15,241,169,683.85/141,632.70
  6. Step 6: Final answer
    x = 107,610.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.