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Finding the Fourth Proportional to 180,396.80, 248,973.98 and 103,901.18

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Solution

The fourth proportional to 180,396.80, 248,973.98 and 103,901.18 is: 143,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,396.80 : 248,973.98 = 103,901.18 : x
  2. Step 2: Convert to fraction form
    180,396.80/248,973.98 = 103,901.18/x
  3. Step 3: Cross multiply
    180,396.80x = 248,973.98 × 103,901.18
  4. Step 4: Simplify right side
    180,396.80x = 25,868,691,193.48
  5. Step 5: Solve for x
    x = 25,868,691,193.48/180,396.80
  6. Step 6: Final answer
    x = 143,398.84

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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.