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Finding the Fourth Proportional to 223,221.36, 334,844.52 and 71,431.68

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Solution

The fourth proportional to 223,221.36, 334,844.52 and 71,431.68 is: 107,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,221.36 : 334,844.52 = 71,431.68 : x
  2. Step 2: Convert to fraction form
    223,221.36/334,844.52 = 71,431.68/x
  3. Step 3: Cross multiply
    223,221.36x = 334,844.52 × 71,431.68
  4. Step 4: Simplify right side
    223,221.36x = 23,918,506,602.39
  5. Step 5: Solve for x
    x = 23,918,506,602.39/223,221.36
  6. Step 6: Final answer
    x = 107,151.51

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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.