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Finding the Fourth Proportional to 229,418.58, 316,648.23 and 127,479.06

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Solution

The fourth proportional to 229,418.58, 316,648.23 and 127,479.06 is: 175,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,418.58 : 316,648.23 = 127,479.06 : x
  2. Step 2: Convert to fraction form
    229,418.58/316,648.23 = 127,479.06/x
  3. Step 3: Cross multiply
    229,418.58x = 316,648.23 × 127,479.06
  4. Step 4: Simplify right side
    229,418.58x = 40,366,018,711.06
  5. Step 5: Solve for x
    x = 40,366,018,711.06/229,418.58
  6. Step 6: Final answer
    x = 175,949.21

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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.