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Finding the Fourth Proportional to 64,868.96, 96,658.61 and 57,794.63

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Solution

The fourth proportional to 64,868.96, 96,658.61 and 57,794.63 is: 86,117.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.96 : 96,658.61 = 57,794.63 : x
  2. Step 2: Convert to fraction form
    64,868.96/96,658.61 = 57,794.63/x
  3. Step 3: Cross multiply
    64,868.96x = 96,658.61 × 57,794.63
  4. Step 4: Simplify right side
    64,868.96x = 5,586,347,829.00
  5. Step 5: Solve for x
    x = 5,586,347,829.00/64,868.96
  6. Step 6: Final answer
    x = 86,117.42

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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.