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Finding the Fourth Proportional to 72,674.93, 100,226.70 and 47,156.93

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Solution

The fourth proportional to 72,674.93, 100,226.70 and 47,156.93 is: 65,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674.93 : 100,226.70 = 47,156.93 : x
  2. Step 2: Convert to fraction form
    72,674.93/100,226.70 = 47,156.93/x
  3. Step 3: Cross multiply
    72,674.93x = 100,226.70 × 47,156.93
  4. Step 4: Simplify right side
    72,674.93x = 4,726,383,476.03
  5. Step 5: Solve for x
    x = 4,726,383,476.03/72,674.93
  6. Step 6: Final answer
    x = 65,034.58

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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.