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Finding the Fourth Proportional to 207,045.88, 310,443.37 and 135,052.56

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Solution

The fourth proportional to 207,045.88, 310,443.37 and 135,052.56 is: 202,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,045.88 : 310,443.37 = 135,052.56 : x
  2. Step 2: Convert to fraction form
    207,045.88/310,443.37 = 135,052.56/x
  3. Step 3: Cross multiply
    207,045.88x = 310,443.37 × 135,052.56
  4. Step 4: Simplify right side
    207,045.88x = 41,926,171,515.90
  5. Step 5: Solve for x
    x = 41,926,171,515.90/207,045.88
  6. Step 6: Final answer
    x = 202,497.01

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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.