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Finding the Fourth Proportional to 75,653.75, 104,367.12 and 48,804.91

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Solution

The fourth proportional to 75,653.75, 104,367.12 and 48,804.91 is: 67,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,653.75 : 104,367.12 = 48,804.91 : x
  2. Step 2: Convert to fraction form
    75,653.75/104,367.12 = 48,804.91/x
  3. Step 3: Cross multiply
    75,653.75x = 104,367.12 × 48,804.91
  4. Step 4: Simplify right side
    75,653.75x = 5,093,627,898.56
  5. Step 5: Solve for x
    x = 5,093,627,898.56/75,653.75
  6. Step 6: Final answer
    x = 67,328.16

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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.