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Finding the Fourth Proportional to 248,507.76, 372,773.88 and 71,040.72

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Solution

The fourth proportional to 248,507.76, 372,773.88 and 71,040.72 is: 106,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,507.76 : 372,773.88 = 71,040.72 : x
  2. Step 2: Convert to fraction form
    248,507.76/372,773.88 = 71,040.72/x
  3. Step 3: Cross multiply
    248,507.76x = 372,773.88 × 71,040.72
  4. Step 4: Simplify right side
    248,507.76x = 26,482,124,832.39
  5. Step 5: Solve for x
    x = 26,482,124,832.39/248,507.76
  6. Step 6: Final answer
    x = 106,564.58

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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.