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Finding the Fourth Proportional to 186,070.08, 279,098.88 and 80,889

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Solution

The fourth proportional to 186,070.08, 279,098.88 and 80,889 is: 121,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,070.08 : 279,098.88 = 80,889 : x
  2. Step 2: Convert to fraction form
    186,070.08/279,098.88 = 80,889/x
  3. Step 3: Cross multiply
    186,070.08x = 279,098.88 × 80,889
  4. Step 4: Simplify right side
    186,070.08x = 22,576,029,304.32
  5. Step 5: Solve for x
    x = 22,576,029,304.32/186,070.08
  6. Step 6: Final answer
    x = 121,330.79

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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.