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Finding the Fourth Proportional to 76,553.83, 105,695.84 and 68,462.33

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Solution

The fourth proportional to 76,553.83, 105,695.84 and 68,462.33 is: 94,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,553.83 : 105,695.84 = 68,462.33 : x
  2. Step 2: Convert to fraction form
    76,553.83/105,695.84 = 68,462.33/x
  3. Step 3: Cross multiply
    76,553.83x = 105,695.84 × 68,462.33
  4. Step 4: Simplify right side
    76,553.83x = 7,236,183,477.71
  5. Step 5: Solve for x
    x = 7,236,183,477.71/76,553.83
  6. Step 6: Final answer
    x = 94,524.12

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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.