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Finding the Fourth Proportional to 141,874.66, 195,788.34 and 78,214.74

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Solution

The fourth proportional to 141,874.66, 195,788.34 and 78,214.74 is: 107,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,874.66 : 195,788.34 = 78,214.74 : x
  2. Step 2: Convert to fraction form
    141,874.66/195,788.34 = 78,214.74/x
  3. Step 3: Cross multiply
    141,874.66x = 195,788.34 × 78,214.74
  4. Step 4: Simplify right side
    141,874.66x = 15,313,534,108.13
  5. Step 5: Solve for x
    x = 15,313,534,108.13/141,874.66
  6. Step 6: Final answer
    x = 107,937.06

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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.