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Finding the Fourth Proportional to 91,211.46, 125,892.84 and 53,497.86

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Solution

The fourth proportional to 91,211.46, 125,892.84 and 53,497.86 is: 73,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,211.46 : 125,892.84 = 53,497.86 : x
  2. Step 2: Convert to fraction form
    91,211.46/125,892.84 = 53,497.86/x
  3. Step 3: Cross multiply
    91,211.46x = 125,892.84 × 53,497.86
  4. Step 4: Simplify right side
    91,211.46x = 6,734,997,529.32
  5. Step 5: Solve for x
    x = 6,734,997,529.32/91,211.46
  6. Step 6: Final answer
    x = 73,839.38

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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.