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Finding the Fourth Proportional to 140,841.39, 194,255.16 and 97,820.93

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Solution

The fourth proportional to 140,841.39, 194,255.16 and 97,820.93 is: 134,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,841.39 : 194,255.16 = 97,820.93 : x
  2. Step 2: Convert to fraction form
    140,841.39/194,255.16 = 97,820.93/x
  3. Step 3: Cross multiply
    140,841.39x = 194,255.16 × 97,820.93
  4. Step 4: Simplify right side
    140,841.39x = 19,002,220,408.50
  5. Step 5: Solve for x
    x = 19,002,220,408.50/140,841.39
  6. Step 6: Final answer
    x = 134,919.29

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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.