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Finding the Fourth Proportional to 247,778.57, 341,905.38 and 145,781.58

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Solution

The fourth proportional to 247,778.57, 341,905.38 and 145,781.58 is: 201,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,778.57 : 341,905.38 = 145,781.58 : x
  2. Step 2: Convert to fraction form
    247,778.57/341,905.38 = 145,781.58/x
  3. Step 3: Cross multiply
    247,778.57x = 341,905.38 × 145,781.58
  4. Step 4: Simplify right side
    247,778.57x = 49,843,506,506.90
  5. Step 5: Solve for x
    x = 49,843,506,506.90/247,778.57
  6. Step 6: Final answer
    x = 201,161.49

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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.