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Finding the Fourth Proportional to 90,594.88, 135,840 and 35,126.08

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Solution

The fourth proportional to 90,594.88, 135,840 and 35,126.08 is: 52,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,594.88 : 135,840 = 35,126.08 : x
  2. Step 2: Convert to fraction form
    90,594.88/135,840 = 35,126.08/x
  3. Step 3: Cross multiply
    90,594.88x = 135,840 × 35,126.08
  4. Step 4: Simplify right side
    90,594.88x = 4,771,526,707.20
  5. Step 5: Solve for x
    x = 4,771,526,707.20/90,594.88
  6. Step 6: Final answer
    x = 52,668.83

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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.