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Finding the Fourth Proportional to 250,443.16, 345,610.88 and 135,724.98

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Solution

The fourth proportional to 250,443.16, 345,610.88 and 135,724.98 is: 187,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,443.16 : 345,610.88 = 135,724.98 : x
  2. Step 2: Convert to fraction form
    250,443.16/345,610.88 = 135,724.98/x
  3. Step 3: Cross multiply
    250,443.16x = 345,610.88 × 135,724.98
  4. Step 4: Simplify right side
    250,443.16x = 46,908,029,775.78
  5. Step 5: Solve for x
    x = 46,908,029,775.78/250,443.16
  6. Step 6: Final answer
    x = 187,300.10

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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.