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Finding the Fourth Proportional to 80,316.16, 110,842.64 and 44,509.60

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Solution

The fourth proportional to 80,316.16, 110,842.64 and 44,509.60 is: 61,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,316.16 : 110,842.64 = 44,509.60 : x
  2. Step 2: Convert to fraction form
    80,316.16/110,842.64 = 44,509.60/x
  3. Step 3: Cross multiply
    80,316.16x = 110,842.64 × 44,509.60
  4. Step 4: Simplify right side
    80,316.16x = 4,933,561,569.34
  5. Step 5: Solve for x
    x = 4,933,561,569.34/80,316.16
  6. Step 6: Final answer
    x = 61,426.76

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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.