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Finding the Fourth Proportional to 131,751.66, 197,627.76 and 61,680.18

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Solution

The fourth proportional to 131,751.66, 197,627.76 and 61,680.18 is: 92,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,751.66 : 197,627.76 = 61,680.18 : x
  2. Step 2: Convert to fraction form
    131,751.66/197,627.76 = 61,680.18/x
  3. Step 3: Cross multiply
    131,751.66x = 197,627.76 × 61,680.18
  4. Step 4: Simplify right side
    131,751.66x = 12,189,715,809.80
  5. Step 5: Solve for x
    x = 12,189,715,809.80/131,751.66
  6. Step 6: Final answer
    x = 92,520.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.