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Finding the Fourth Proportional to 186,633.90, 279,950.85 and 127,584.90

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Solution

The fourth proportional to 186,633.90, 279,950.85 and 127,584.90 is: 191,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,633.90 : 279,950.85 = 127,584.90 : x
  2. Step 2: Convert to fraction form
    186,633.90/279,950.85 = 127,584.90/x
  3. Step 3: Cross multiply
    186,633.90x = 279,950.85 × 127,584.90
  4. Step 4: Simplify right side
    186,633.90x = 35,717,501,202.17
  5. Step 5: Solve for x
    x = 35,717,501,202.17/186,633.90
  6. Step 6: Final answer
    x = 191,377.35

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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.