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Finding the Fourth Proportional to 60,699.78, 83,320.04 and 53,835.33

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Solution

The fourth proportional to 60,699.78, 83,320.04 and 53,835.33 is: 73,897.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,699.78 : 83,320.04 = 53,835.33 : x
  2. Step 2: Convert to fraction form
    60,699.78/83,320.04 = 53,835.33/x
  3. Step 3: Cross multiply
    60,699.78x = 83,320.04 × 53,835.33
  4. Step 4: Simplify right side
    60,699.78x = 4,485,562,296.05
  5. Step 5: Solve for x
    x = 4,485,562,296.05/60,699.78
  6. Step 6: Final answer
    x = 73,897.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.