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Finding the Fourth Proportional to 269,407.17, 404,152.29 and 91,872.66

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Solution

The fourth proportional to 269,407.17, 404,152.29 and 91,872.66 is: 137,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,407.17 : 404,152.29 = 91,872.66 : x
  2. Step 2: Convert to fraction form
    269,407.17/404,152.29 = 91,872.66/x
  3. Step 3: Cross multiply
    269,407.17x = 404,152.29 × 91,872.66
  4. Step 4: Simplify right side
    269,407.17x = 37,130,545,927.39
  5. Step 5: Solve for x
    x = 37,130,545,927.39/269,407.17
  6. Step 6: Final answer
    x = 137,823.15

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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.