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Finding the Fourth Proportional to 63,143.76, 94,198.08 and 61,427.64

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Solution

The fourth proportional to 63,143.76, 94,198.08 and 61,427.64 is: 91,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,143.76 : 94,198.08 = 61,427.64 : x
  2. Step 2: Convert to fraction form
    63,143.76/94,198.08 = 61,427.64/x
  3. Step 3: Cross multiply
    63,143.76x = 94,198.08 × 61,427.64
  4. Step 4: Simplify right side
    63,143.76x = 5,786,365,746.93
  5. Step 5: Solve for x
    x = 5,786,365,746.93/63,143.76
  6. Step 6: Final answer
    x = 91,637.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.