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Finding the Fourth Proportional to 197,404.58, 272,419.95 and 112,527.11

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Solution

The fourth proportional to 197,404.58, 272,419.95 and 112,527.11 is: 155,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,404.58 : 272,419.95 = 112,527.11 : x
  2. Step 2: Convert to fraction form
    197,404.58/272,419.95 = 112,527.11/x
  3. Step 3: Cross multiply
    197,404.58x = 272,419.95 × 112,527.11
  4. Step 4: Simplify right side
    197,404.58x = 30,654,629,679.84
  5. Step 5: Solve for x
    x = 30,654,629,679.84/197,404.58
  6. Step 6: Final answer
    x = 155,288.34

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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.