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Finding the Fourth Proportional to 251,148.80, 376,723.20 and 162,502.40

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Solution

The fourth proportional to 251,148.80, 376,723.20 and 162,502.40 is: 243,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,148.80 : 376,723.20 = 162,502.40 : x
  2. Step 2: Convert to fraction form
    251,148.80/376,723.20 = 162,502.40/x
  3. Step 3: Cross multiply
    251,148.80x = 376,723.20 × 162,502.40
  4. Step 4: Simplify right side
    251,148.80x = 61,218,424,135.68
  5. Step 5: Solve for x
    x = 61,218,424,135.68/251,148.80
  6. Step 6: Final answer
    x = 243,753.60

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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.