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Finding the Fourth Proportional to 168,553.80, 252,830.70 and 155,723.40

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Solution

The fourth proportional to 168,553.80, 252,830.70 and 155,723.40 is: 233,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,553.80 : 252,830.70 = 155,723.40 : x
  2. Step 2: Convert to fraction form
    168,553.80/252,830.70 = 155,723.40/x
  3. Step 3: Cross multiply
    168,553.80x = 252,830.70 × 155,723.40
  4. Step 4: Simplify right side
    168,553.80x = 39,371,656,228.38
  5. Step 5: Solve for x
    x = 39,371,656,228.38/168,553.80
  6. Step 6: Final answer
    x = 233,585.10

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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.