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Finding the Fourth Proportional to 97,866.52, 135,049.40 and 57,572.49

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Solution

The fourth proportional to 97,866.52, 135,049.40 and 57,572.49 is: 79,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,866.52 : 135,049.40 = 57,572.49 : x
  2. Step 2: Convert to fraction form
    97,866.52/135,049.40 = 57,572.49/x
  3. Step 3: Cross multiply
    97,866.52x = 135,049.40 × 57,572.49
  4. Step 4: Simplify right side
    97,866.52x = 7,775,130,231.01
  5. Step 5: Solve for x
    x = 7,775,130,231.01/97,866.52
  6. Step 6: Final answer
    x = 79,446.27

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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.