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Finding the Fourth Proportional to 170,638.48, 235,462.44 and 120,250

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Solution

The fourth proportional to 170,638.48, 235,462.44 and 120,250 is: 165,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,638.48 : 235,462.44 = 120,250 : x
  2. Step 2: Convert to fraction form
    170,638.48/235,462.44 = 120,250/x
  3. Step 3: Cross multiply
    170,638.48x = 235,462.44 × 120,250
  4. Step 4: Simplify right side
    170,638.48x = 28,314,358,410
  5. Step 5: Solve for x
    x = 28,314,358,410/170,638.48
  6. Step 6: Final answer
    x = 165,931.85

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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.