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Finding the Fourth Proportional to 247,630.72, 341,751.54 and 140,219.68

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Solution

The fourth proportional to 247,630.72, 341,751.54 and 140,219.68 is: 193,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,630.72 : 341,751.54 = 140,219.68 : x
  2. Step 2: Convert to fraction form
    247,630.72/341,751.54 = 140,219.68/x
  3. Step 3: Cross multiply
    247,630.72x = 341,751.54 × 140,219.68
  4. Step 4: Simplify right side
    247,630.72x = 47,920,291,578.31
  5. Step 5: Solve for x
    x = 47,920,291,578.31/247,630.72
  6. Step 6: Final answer
    x = 193,515.13

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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.