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Finding the Fourth Proportional to 96,390.54, 133,017.57 and 53,365.91

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Solution

The fourth proportional to 96,390.54, 133,017.57 and 53,365.91 is: 73,644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,390.54 : 133,017.57 = 53,365.91 : x
  2. Step 2: Convert to fraction form
    96,390.54/133,017.57 = 53,365.91/x
  3. Step 3: Cross multiply
    96,390.54x = 133,017.57 × 53,365.91
  4. Step 4: Simplify right side
    96,390.54x = 7,098,603,003.95
  5. Step 5: Solve for x
    x = 7,098,603,003.95/96,390.54
  6. Step 6: Final answer
    x = 73,644.19

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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.