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Finding the Fourth Proportional to 90,968.59, 136,335.12 and 62,843.77

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Solution

The fourth proportional to 90,968.59, 136,335.12 and 62,843.77 is: 94,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.59 : 136,335.12 = 62,843.77 : x
  2. Step 2: Convert to fraction form
    90,968.59/136,335.12 = 62,843.77/x
  3. Step 3: Cross multiply
    90,968.59x = 136,335.12 × 62,843.77
  4. Step 4: Simplify right side
    90,968.59x = 8,567,812,924.20
  5. Step 5: Solve for x
    x = 8,567,812,924.20/90,968.59
  6. Step 6: Final answer
    x = 94,184.30

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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.