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Finding the Fourth Proportional to 267,708.56, 369,437.76 and 154,531.30

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Solution

The fourth proportional to 267,708.56, 369,437.76 and 154,531.30 is: 213,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,708.56 : 369,437.76 = 154,531.30 : x
  2. Step 2: Convert to fraction form
    267,708.56/369,437.76 = 154,531.30/x
  3. Step 3: Cross multiply
    267,708.56x = 369,437.76 × 154,531.30
  4. Step 4: Simplify right side
    267,708.56x = 57,089,697,321.89
  5. Step 5: Solve for x
    x = 57,089,697,321.89/267,708.56
  6. Step 6: Final answer
    x = 213,253.16

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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.