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Finding the Fourth Proportional to 91,443.86, 137,041.22 and 44,055.54

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Solution

The fourth proportional to 91,443.86, 137,041.22 and 44,055.54 is: 66,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,443.86 : 137,041.22 = 44,055.54 : x
  2. Step 2: Convert to fraction form
    91,443.86/137,041.22 = 44,055.54/x
  3. Step 3: Cross multiply
    91,443.86x = 137,041.22 × 44,055.54
  4. Step 4: Simplify right side
    91,443.86x = 6,037,424,949.36
  5. Step 5: Solve for x
    x = 6,037,424,949.36/91,443.86
  6. Step 6: Final answer
    x = 66,023.30

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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.