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Finding the Fourth Proportional to 72,955.25, 100,679.78 and 41,124.14

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Solution

The fourth proportional to 72,955.25, 100,679.78 and 41,124.14 is: 56,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,955.25 : 100,679.78 = 41,124.14 : x
  2. Step 2: Convert to fraction form
    72,955.25/100,679.78 = 41,124.14/x
  3. Step 3: Cross multiply
    72,955.25x = 100,679.78 × 41,124.14
  4. Step 4: Simplify right side
    72,955.25x = 4,140,368,658.87
  5. Step 5: Solve for x
    x = 4,140,368,658.87/72,955.25
  6. Step 6: Final answer
    x = 56,752.17

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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.