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Finding the Fourth Proportional to 108,438.58, 149,641.19 and 60,039.54

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Solution

The fourth proportional to 108,438.58, 149,641.19 and 60,039.54 is: 82,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,438.58 : 149,641.19 = 60,039.54 : x
  2. Step 2: Convert to fraction form
    108,438.58/149,641.19 = 60,039.54/x
  3. Step 3: Cross multiply
    108,438.58x = 149,641.19 × 60,039.54
  4. Step 4: Simplify right side
    108,438.58x = 8,984,388,212.65
  5. Step 5: Solve for x
    x = 8,984,388,212.65/108,438.58
  6. Step 6: Final answer
    x = 82,852.33

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1.5x scale

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.