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Finding the Fourth Proportional to 178,147.20, 267,220.80 and 176,918.40

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Solution

The fourth proportional to 178,147.20, 267,220.80 and 176,918.40 is: 265,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,147.20 : 267,220.80 = 176,918.40 : x
  2. Step 2: Convert to fraction form
    178,147.20/267,220.80 = 176,918.40/x
  3. Step 3: Cross multiply
    178,147.20x = 267,220.80 × 176,918.40
  4. Step 4: Simplify right side
    178,147.20x = 47,276,276,382.72
  5. Step 5: Solve for x
    x = 47,276,276,382.72/178,147.20
  6. Step 6: Final answer
    x = 265,377.60

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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.