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Finding the Fourth Proportional to 180,343.61, 248,876.80 and 103,876.43

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Solution

The fourth proportional to 180,343.61, 248,876.80 and 103,876.43 is: 143,350.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,343.61 : 248,876.80 = 103,876.43 : x
  2. Step 2: Convert to fraction form
    180,343.61/248,876.80 = 103,876.43/x
  3. Step 3: Cross multiply
    180,343.61x = 248,876.80 × 103,876.43
  4. Step 4: Simplify right side
    180,343.61x = 25,852,434,443.43
  5. Step 5: Solve for x
    x = 25,852,434,443.43/180,343.61
  6. Step 6: Final answer
    x = 143,350.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.