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Finding the Fourth Proportional to 178,221.60, 267,332.40 and 166,411.80

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Solution

The fourth proportional to 178,221.60, 267,332.40 and 166,411.80 is: 249,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,221.60 : 267,332.40 = 166,411.80 : x
  2. Step 2: Convert to fraction form
    178,221.60/267,332.40 = 166,411.80/x
  3. Step 3: Cross multiply
    178,221.60x = 267,332.40 × 166,411.80
  4. Step 4: Simplify right side
    178,221.60x = 44,487,265,882.32
  5. Step 5: Solve for x
    x = 44,487,265,882.32/178,221.60
  6. Step 6: Final answer
    x = 249,617.70

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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.