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Finding the Fourth Proportional to 186,468.85, 279,703.28 and 86,595.85

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Solution

The fourth proportional to 186,468.85, 279,703.28 and 86,595.85 is: 129,893.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,468.85 : 279,703.28 = 86,595.85 : x
  2. Step 2: Convert to fraction form
    186,468.85/279,703.28 = 86,595.85/x
  3. Step 3: Cross multiply
    186,468.85x = 279,703.28 × 86,595.85
  4. Step 4: Simplify right side
    186,468.85x = 24,221,142,846.41
  5. Step 5: Solve for x
    x = 24,221,142,846.41/186,468.85
  6. Step 6: Final answer
    x = 129,893.78

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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.