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Finding the Fourth Proportional to 64,602.33, 96,777.14 and 42,347.79

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Solution

The fourth proportional to 64,602.33, 96,777.14 and 42,347.79 is: 63,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,602.33 : 96,777.14 = 42,347.79 : x
  2. Step 2: Convert to fraction form
    64,602.33/96,777.14 = 42,347.79/x
  3. Step 3: Cross multiply
    64,602.33x = 96,777.14 × 42,347.79
  4. Step 4: Simplify right side
    64,602.33x = 4,098,297,789.78
  5. Step 5: Solve for x
    x = 4,098,297,789.78/64,602.33
  6. Step 6: Final answer
    x = 63,438.85

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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.