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Finding the Fourth Proportional to 108,763.74, 163,074.87 and 45,624.33

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Solution

The fourth proportional to 108,763.74, 163,074.87 and 45,624.33 is: 68,406.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,763.74 : 163,074.87 = 45,624.33 : x
  2. Step 2: Convert to fraction form
    108,763.74/163,074.87 = 45,624.33/x
  3. Step 3: Cross multiply
    108,763.74x = 163,074.87 × 45,624.33
  4. Step 4: Simplify right side
    108,763.74x = 7,440,181,683.59
  5. Step 5: Solve for x
    x = 7,440,181,683.59/108,763.74
  6. Step 6: Final answer
    x = 68,406.82

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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.