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Finding the Fourth Proportional to 104,489.06, 155,632.57 and 102,302.06

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Solution

The fourth proportional to 104,489.06, 155,632.57 and 102,302.06 is: 152,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,489.06 : 155,632.57 = 102,302.06 : x
  2. Step 2: Convert to fraction form
    104,489.06/155,632.57 = 102,302.06/x
  3. Step 3: Cross multiply
    104,489.06x = 155,632.57 × 102,302.06
  4. Step 4: Simplify right side
    104,489.06x = 15,921,532,514.09
  5. Step 5: Solve for x
    x = 15,921,532,514.09/104,489.06
  6. Step 6: Final answer
    x = 152,375.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.