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Finding the Fourth Proportional to 186,508.50, 279,879.33 and 75,700.50

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Solution

The fourth proportional to 186,508.50, 279,879.33 and 75,700.50 is: 113,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,508.50 : 279,879.33 = 75,700.50 : x
  2. Step 2: Convert to fraction form
    186,508.50/279,879.33 = 75,700.50/x
  3. Step 3: Cross multiply
    186,508.50x = 279,879.33 × 75,700.50
  4. Step 4: Simplify right side
    186,508.50x = 21,187,005,220.67
  5. Step 5: Solve for x
    x = 21,187,005,220.67/186,508.50
  6. Step 6: Final answer
    x = 113,598.07

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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.