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Finding the Fourth Proportional to 90,392.54, 135,569.32 and 37,032.19

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Solution

The fourth proportional to 90,392.54, 135,569.32 and 37,032.19 is: 55,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,392.54 : 135,569.32 = 37,032.19 : x
  2. Step 2: Convert to fraction form
    90,392.54/135,569.32 = 37,032.19/x
  3. Step 3: Cross multiply
    90,392.54x = 135,569.32 × 37,032.19
  4. Step 4: Simplify right side
    90,392.54x = 5,020,428,384.91
  5. Step 5: Solve for x
    x = 5,020,428,384.91/90,392.54
  6. Step 6: Final answer
    x = 55,540.30

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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.