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Finding the Fourth Proportional to 395,689.90, 593,529.52 and 96,169.61

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Solution

The fourth proportional to 395,689.90, 593,529.52 and 96,169.61 is: 144,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,689.90 : 593,529.52 = 96,169.61 : x
  2. Step 2: Convert to fraction form
    395,689.90/593,529.52 = 96,169.61/x
  3. Step 3: Cross multiply
    395,689.90x = 593,529.52 × 96,169.61
  4. Step 4: Simplify right side
    395,689.90x = 57,079,501,981.04
  5. Step 5: Solve for x
    x = 57,079,501,981.04/395,689.90
  6. Step 6: Final answer
    x = 144,253.12

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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.