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Finding the Fourth Proportional to 238,543.45, 357,679.10 and 98,134.81

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Solution

The fourth proportional to 238,543.45, 357,679.10 and 98,134.81 is: 147,146.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,543.45 : 357,679.10 = 98,134.81 : x
  2. Step 2: Convert to fraction form
    238,543.45/357,679.10 = 98,134.81/x
  3. Step 3: Cross multiply
    238,543.45x = 357,679.10 × 98,134.81
  4. Step 4: Simplify right side
    238,543.45x = 35,100,770,028.80
  5. Step 5: Solve for x
    x = 35,100,770,028.80/238,543.45
  6. Step 6: Final answer
    x = 147,146.23

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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.