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Finding the Fourth Proportional to 127,352.52, 175,749.87 and 69,993.50

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Solution

The fourth proportional to 127,352.52, 175,749.87 and 69,993.50 is: 96,592.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,352.52 : 175,749.87 = 69,993.50 : x
  2. Step 2: Convert to fraction form
    127,352.52/175,749.87 = 69,993.50/x
  3. Step 3: Cross multiply
    127,352.52x = 175,749.87 × 69,993.50
  4. Step 4: Simplify right side
    127,352.52x = 12,301,347,647.10
  5. Step 5: Solve for x
    x = 12,301,347,647.10/127,352.52
  6. Step 6: Final answer
    x = 96,592.89

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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.