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Finding the Fourth Proportional to 61,319.44, 91,979.76 and 33,602.32

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Solution

The fourth proportional to 61,319.44, 91,979.76 and 33,602.32 is: 50,403.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,319.44 : 91,979.76 = 33,602.32 : x
  2. Step 2: Convert to fraction form
    61,319.44/91,979.76 = 33,602.32/x
  3. Step 3: Cross multiply
    61,319.44x = 91,979.76 × 33,602.32
  4. Step 4: Simplify right side
    61,319.44x = 3,090,733,329.04
  5. Step 5: Solve for x
    x = 3,090,733,329.04/61,319.44
  6. Step 6: Final answer
    x = 50,403.81

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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.