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Finding the Fourth Proportional to 185,361.93, 278,064.50 and 67,088.97

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Solution

The fourth proportional to 185,361.93, 278,064.50 and 67,088.97 is: 100,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,361.93 : 278,064.50 = 67,088.97 : x
  2. Step 2: Convert to fraction form
    185,361.93/278,064.50 = 67,088.97/x
  3. Step 3: Cross multiply
    185,361.93x = 278,064.50 × 67,088.97
  4. Step 4: Simplify right side
    185,361.93x = 18,655,060,563.12
  5. Step 5: Solve for x
    x = 18,655,060,563.12/185,361.93
  6. Step 6: Final answer
    x = 100,641.27

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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.