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Finding the Fourth Proportional to 118,851.20, 178,190.40 and 48,694.40

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Solution

The fourth proportional to 118,851.20, 178,190.40 and 48,694.40 is: 73,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,851.20 : 178,190.40 = 48,694.40 : x
  2. Step 2: Convert to fraction form
    118,851.20/178,190.40 = 48,694.40/x
  3. Step 3: Cross multiply
    118,851.20x = 178,190.40 × 48,694.40
  4. Step 4: Simplify right side
    118,851.20x = 8,676,874,613.76
  5. Step 5: Solve for x
    x = 8,676,874,613.76/118,851.20
  6. Step 6: Final answer
    x = 73,006.20

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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.