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Finding the Fourth Proportional to 186,486.04, 279,479.94 and 68,046.04

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Solution

The fourth proportional to 186,486.04, 279,479.94 and 68,046.04 is: 101,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,486.04 : 279,479.94 = 68,046.04 : x
  2. Step 2: Convert to fraction form
    186,486.04/279,479.94 = 68,046.04/x
  3. Step 3: Cross multiply
    186,486.04x = 279,479.94 × 68,046.04
  4. Step 4: Simplify right side
    186,486.04x = 19,017,503,176.44
  5. Step 5: Solve for x
    x = 19,017,503,176.44/186,486.04
  6. Step 6: Final answer
    x = 101,978.16

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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.