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Finding the Fourth Proportional to 132,468.77, 182,806.01 and 72,039.26

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Solution

The fourth proportional to 132,468.77, 182,806.01 and 72,039.26 is: 99,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,468.77 : 182,806.01 = 72,039.26 : x
  2. Step 2: Convert to fraction form
    132,468.77/182,806.01 = 72,039.26/x
  3. Step 3: Cross multiply
    132,468.77x = 182,806.01 × 72,039.26
  4. Step 4: Simplify right side
    132,468.77x = 13,169,208,409.73
  5. Step 5: Solve for x
    x = 13,169,208,409.73/132,468.77
  6. Step 6: Final answer
    x = 99,413.69

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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.