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Finding the Fourth Proportional to 89,701.92, 134,559.42 and 36,368.28

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Solution

The fourth proportional to 89,701.92, 134,559.42 and 36,368.28 is: 54,555.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,701.92 : 134,559.42 = 36,368.28 : x
  2. Step 2: Convert to fraction form
    89,701.92/134,559.42 = 36,368.28/x
  3. Step 3: Cross multiply
    89,701.92x = 134,559.42 × 36,368.28
  4. Step 4: Simplify right side
    89,701.92x = 4,893,694,663.20
  5. Step 5: Solve for x
    x = 4,893,694,663.20/89,701.92
  6. Step 6: Final answer
    x = 54,555.07

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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.