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Finding the Fourth Proportional to 186,006.90, 279,006.69 and 61,347.90

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Solution

The fourth proportional to 186,006.90, 279,006.69 and 61,347.90 is: 92,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,006.90 : 279,006.69 = 61,347.90 : x
  2. Step 2: Convert to fraction form
    186,006.90/279,006.69 = 61,347.90/x
  3. Step 3: Cross multiply
    186,006.90x = 279,006.69 × 61,347.90
  4. Step 4: Simplify right side
    186,006.90x = 17,116,474,517.45
  5. Step 5: Solve for x
    x = 17,116,474,517.45/186,006.90
  6. Step 6: Final answer
    x = 92,020.64

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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.