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Finding the Fourth Proportional to 71,816.94, 99,103.58 and 41,188.46

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Solution

The fourth proportional to 71,816.94, 99,103.58 and 41,188.46 is: 56,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,816.94 : 99,103.58 = 41,188.46 : x
  2. Step 2: Convert to fraction form
    71,816.94/99,103.58 = 41,188.46/x
  3. Step 3: Cross multiply
    71,816.94x = 99,103.58 × 41,188.46
  4. Step 4: Simplify right side
    71,816.94x = 4,081,923,695.90
  5. Step 5: Solve for x
    x = 4,081,923,695.90/71,816.94
  6. Step 6: Final answer
    x = 56,837.89

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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.