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Finding the Fourth Proportional to 90,599.48, 135,952.66 and 34,486.80

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Solution

The fourth proportional to 90,599.48, 135,952.66 and 34,486.80 is: 51,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,599.48 : 135,952.66 = 34,486.80 : x
  2. Step 2: Convert to fraction form
    90,599.48/135,952.66 = 34,486.80/x
  3. Step 3: Cross multiply
    90,599.48x = 135,952.66 × 34,486.80
  4. Step 4: Simplify right side
    90,599.48x = 4,688,572,194.89
  5. Step 5: Solve for x
    x = 4,688,572,194.89/90,599.48
  6. Step 6: Final answer
    x = 51,750.54

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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.