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Finding the Fourth Proportional to 277,625.88, 416,438.69 and 90,637.38

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Solution

The fourth proportional to 277,625.88, 416,438.69 and 90,637.38 is: 135,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,625.88 : 416,438.69 = 90,637.38 : x
  2. Step 2: Convert to fraction form
    277,625.88/416,438.69 = 90,637.38/x
  3. Step 3: Cross multiply
    277,625.88x = 416,438.69 × 90,637.38
  4. Step 4: Simplify right side
    277,625.88x = 37,744,911,339.05
  5. Step 5: Solve for x
    x = 37,744,911,339.05/277,625.88
  6. Step 6: Final answer
    x = 135,956.03

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1.5x scale

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.