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Finding the Fourth Proportional to 328,781.31, 453,718.31 and 185,571.69

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Solution

The fourth proportional to 328,781.31, 453,718.31 and 185,571.69 is: 256,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,781.31 : 453,718.31 = 185,571.69 : x
  2. Step 2: Convert to fraction form
    328,781.31/453,718.31 = 185,571.69/x
  3. Step 3: Cross multiply
    328,781.31x = 453,718.31 × 185,571.69
  4. Step 4: Simplify right side
    328,781.31x = 84,197,272,642.79
  5. Step 5: Solve for x
    x = 84,197,272,642.79/328,781.31
  6. Step 6: Final answer
    x = 256,088.99

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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.