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Finding the Fourth Proportional to 76,464.26, 105,530.01 and 48,169.46

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Solution

The fourth proportional to 76,464.26, 105,530.01 and 48,169.46 is: 66,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,464.26 : 105,530.01 = 48,169.46 : x
  2. Step 2: Convert to fraction form
    76,464.26/105,530.01 = 48,169.46/x
  3. Step 3: Cross multiply
    76,464.26x = 105,530.01 × 48,169.46
  4. Step 4: Simplify right side
    76,464.26x = 5,083,323,595.49
  5. Step 5: Solve for x
    x = 5,083,323,595.49/76,464.26
  6. Step 6: Final answer
    x = 66,479.73

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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.