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Finding the Fourth Proportional to 64,266.78, 88,670.73 and 39,098.46

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Solution

The fourth proportional to 64,266.78, 88,670.73 and 39,098.46 is: 53,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,266.78 : 88,670.73 = 39,098.46 : x
  2. Step 2: Convert to fraction form
    64,266.78/88,670.73 = 39,098.46/x
  3. Step 3: Cross multiply
    64,266.78x = 88,670.73 × 39,098.46
  4. Step 4: Simplify right side
    64,266.78x = 3,466,888,990.08
  5. Step 5: Solve for x
    x = 3,466,888,990.08/64,266.78
  6. Step 6: Final answer
    x = 53,945.27

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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.