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Finding the Fourth Proportional to 243,781.40, 365,672.10 and 176,907.80

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Solution

The fourth proportional to 243,781.40, 365,672.10 and 176,907.80 is: 265,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,781.40 : 365,672.10 = 176,907.80 : x
  2. Step 2: Convert to fraction form
    243,781.40/365,672.10 = 176,907.80/x
  3. Step 3: Cross multiply
    243,781.40x = 365,672.10 × 176,907.80
  4. Step 4: Simplify right side
    243,781.40x = 64,690,246,732.38
  5. Step 5: Solve for x
    x = 64,690,246,732.38/243,781.40
  6. Step 6: Final answer
    x = 265,361.70

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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.