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Finding the Fourth Proportional to 121,496.40, 182,244.60 and 104,583.60

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Solution

The fourth proportional to 121,496.40, 182,244.60 and 104,583.60 is: 156,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,496.40 : 182,244.60 = 104,583.60 : x
  2. Step 2: Convert to fraction form
    121,496.40/182,244.60 = 104,583.60/x
  3. Step 3: Cross multiply
    121,496.40x = 182,244.60 × 104,583.60
  4. Step 4: Simplify right side
    121,496.40x = 19,059,796,348.56
  5. Step 5: Solve for x
    x = 19,059,796,348.56/121,496.40
  6. Step 6: Final answer
    x = 156,875.40

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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.