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Finding the Fourth Proportional to 57,063.92, 85,608.84 and 30,768.08

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Solution

The fourth proportional to 57,063.92, 85,608.84 and 30,768.08 is: 46,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,063.92 : 85,608.84 = 30,768.08 : x
  2. Step 2: Convert to fraction form
    57,063.92/85,608.84 = 30,768.08/x
  3. Step 3: Cross multiply
    57,063.92x = 85,608.84 × 30,768.08
  4. Step 4: Simplify right side
    57,063.92x = 2,634,019,637.83
  5. Step 5: Solve for x
    x = 2,634,019,637.83/57,063.92
  6. Step 6: Final answer
    x = 46,159.11

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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.