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Finding the Fourth Proportional to 186,888.30, 258,243.22 and 133,079.90

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Solution

The fourth proportional to 186,888.30, 258,243.22 and 133,079.90 is: 183,890.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,888.30 : 258,243.22 = 133,079.90 : x
  2. Step 2: Convert to fraction form
    186,888.30/258,243.22 = 133,079.90/x
  3. Step 3: Cross multiply
    186,888.30x = 258,243.22 × 133,079.90
  4. Step 4: Simplify right side
    186,888.30x = 34,366,981,846.74
  5. Step 5: Solve for x
    x = 34,366,981,846.74/186,888.30
  6. Step 6: Final answer
    x = 183,890.49

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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.