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Finding the Fourth Proportional to 53,368.40, 80,081.40 and 22,206.80

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Solution

The fourth proportional to 53,368.40, 80,081.40 and 22,206.80 is: 33,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,368.40 : 80,081.40 = 22,206.80 : x
  2. Step 2: Convert to fraction form
    53,368.40/80,081.40 = 22,206.80/x
  3. Step 3: Cross multiply
    53,368.40x = 80,081.40 × 22,206.80
  4. Step 4: Simplify right side
    53,368.40x = 1,778,351,633.52
  5. Step 5: Solve for x
    x = 1,778,351,633.52/53,368.40
  6. Step 6: Final answer
    x = 33,322.18

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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.