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Finding the Fourth Proportional to 64,248.72, 88,688.73 and 43,556.97

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Solution

The fourth proportional to 64,248.72, 88,688.73 and 43,556.97 is: 60,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,248.72 : 88,688.73 = 43,556.97 : x
  2. Step 2: Convert to fraction form
    64,248.72/88,688.73 = 43,556.97/x
  3. Step 3: Cross multiply
    64,248.72x = 88,688.73 × 43,556.97
  4. Step 4: Simplify right side
    64,248.72x = 3,863,012,351.95
  5. Step 5: Solve for x
    x = 3,863,012,351.95/64,248.72
  6. Step 6: Final answer
    x = 60,125.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.