Home / 208,582.04-312,687.46-75,432.70

Finding the Fourth Proportional to 208,582.04, 312,687.46 and 75,432.70

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Solution

The fourth proportional to 208,582.04, 312,687.46 and 75,432.70 is: 113,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,582.04 : 312,687.46 = 75,432.70 : x
  2. Step 2: Convert to fraction form
    208,582.04/312,687.46 = 75,432.70/x
  3. Step 3: Cross multiply
    208,582.04x = 312,687.46 × 75,432.70
  4. Step 4: Simplify right side
    208,582.04x = 23,586,859,363.94
  5. Step 5: Solve for x
    x = 23,586,859,363.94/208,582.04
  6. Step 6: Final answer
    x = 113,081.93

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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.