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Finding the Fourth Proportional to 248,232.57, 372,407.31 and 70,742.13

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Solution

The fourth proportional to 248,232.57, 372,407.31 and 70,742.13 is: 106,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,232.57 : 372,407.31 = 70,742.13 : x
  2. Step 2: Convert to fraction form
    248,232.57/372,407.31 = 70,742.13/x
  3. Step 3: Cross multiply
    248,232.57x = 372,407.31 × 70,742.13
  4. Step 4: Simplify right side
    248,232.57x = 26,344,886,336.97
  5. Step 5: Solve for x
    x = 26,344,886,336.97/248,232.57
  6. Step 6: Final answer
    x = 106,129.85

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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.