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Finding the Fourth Proportional to 141,414.48, 195,123.96 and 79,326.96

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Solution

The fourth proportional to 141,414.48, 195,123.96 and 79,326.96 is: 109,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,414.48 : 195,123.96 = 79,326.96 : x
  2. Step 2: Convert to fraction form
    141,414.48/195,123.96 = 79,326.96/x
  3. Step 3: Cross multiply
    141,414.48x = 195,123.96 × 79,326.96
  4. Step 4: Simplify right side
    141,414.48x = 15,478,590,569.96
  5. Step 5: Solve for x
    x = 15,478,590,569.96/141,414.48
  6. Step 6: Final answer
    x = 109,455.49

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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.