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Finding the Fourth Proportional to 229,195.60, 343,825.80 and 71,407.60

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Solution

The fourth proportional to 229,195.60, 343,825.80 and 71,407.60 is: 107,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,195.60 : 343,825.80 = 71,407.60 : x
  2. Step 2: Convert to fraction form
    229,195.60/343,825.80 = 71,407.60/x
  3. Step 3: Cross multiply
    229,195.60x = 343,825.80 × 71,407.60
  4. Step 4: Simplify right side
    229,195.60x = 24,551,775,196.08
  5. Step 5: Solve for x
    x = 24,551,775,196.08/229,195.60
  6. Step 6: Final answer
    x = 107,121.49

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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.