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Finding the Fourth Proportional to 231,479.67, 319,371.08 and 150,877.79

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Solution

The fourth proportional to 231,479.67, 319,371.08 and 150,877.79 is: 208,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,479.67 : 319,371.08 = 150,877.79 : x
  2. Step 2: Convert to fraction form
    231,479.67/319,371.08 = 150,877.79/x
  3. Step 3: Cross multiply
    231,479.67x = 319,371.08 × 150,877.79
  4. Step 4: Simplify right side
    231,479.67x = 48,186,001,520.65
  5. Step 5: Solve for x
    x = 48,186,001,520.65/231,479.67
  6. Step 6: Final answer
    x = 208,165.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.