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Finding the Fourth Proportional to 72,277.47, 108,420.45 and 27,904.46

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Solution

The fourth proportional to 72,277.47, 108,420.45 and 27,904.46 is: 41,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,277.47 : 108,420.45 = 27,904.46 : x
  2. Step 2: Convert to fraction form
    72,277.47/108,420.45 = 27,904.46/x
  3. Step 3: Cross multiply
    72,277.47x = 108,420.45 × 27,904.46
  4. Step 4: Simplify right side
    72,277.47x = 3,025,413,568.10
  5. Step 5: Solve for x
    x = 3,025,413,568.10/72,277.47
  6. Step 6: Final answer
    x = 41,858.32

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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.