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Finding the Fourth Proportional to 235,436.52, 353,044.08 and 85,571.04

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Solution

The fourth proportional to 235,436.52, 353,044.08 and 85,571.04 is: 128,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,436.52 : 353,044.08 = 85,571.04 : x
  2. Step 2: Convert to fraction form
    235,436.52/353,044.08 = 85,571.04/x
  3. Step 3: Cross multiply
    235,436.52x = 353,044.08 × 85,571.04
  4. Step 4: Simplify right side
    235,436.52x = 30,210,349,091.44
  5. Step 5: Solve for x
    x = 30,210,349,091.44/235,436.52
  6. Step 6: Final answer
    x = 128,316.33

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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.