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Finding the Fourth Proportional to 90,563.52, 135,668.57 and 59,304

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Solution

The fourth proportional to 90,563.52, 135,668.57 and 59,304 is: 88,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,563.52 : 135,668.57 = 59,304 : x
  2. Step 2: Convert to fraction form
    90,563.52/135,668.57 = 59,304/x
  3. Step 3: Cross multiply
    90,563.52x = 135,668.57 × 59,304
  4. Step 4: Simplify right side
    90,563.52x = 8,045,688,578.76
  5. Step 5: Solve for x
    x = 8,045,688,578.76/90,563.52
  6. Step 6: Final answer
    x = 88,840.28

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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.