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Finding the Fourth Proportional to 170,601.06, 255,934.39 and 65,411.83

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Solution

The fourth proportional to 170,601.06, 255,934.39 and 65,411.83 is: 98,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,601.06 : 255,934.39 = 65,411.83 : x
  2. Step 2: Convert to fraction form
    170,601.06/255,934.39 = 65,411.83/x
  3. Step 3: Cross multiply
    170,601.06x = 255,934.39 × 65,411.83
  4. Step 4: Simplify right side
    170,601.06x = 16,741,136,809.83
  5. Step 5: Solve for x
    x = 16,741,136,809.83/170,601.06
  6. Step 6: Final answer
    x = 98,130.32

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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.