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Finding the Fourth Proportional to 92,873.79, 128,163.36 and 52,591.38

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Solution

The fourth proportional to 92,873.79, 128,163.36 and 52,591.38 is: 72,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,873.79 : 128,163.36 = 52,591.38 : x
  2. Step 2: Convert to fraction form
    92,873.79/128,163.36 = 52,591.38/x
  3. Step 3: Cross multiply
    92,873.79x = 128,163.36 × 52,591.38
  4. Step 4: Simplify right side
    92,873.79x = 6,740,287,967.84
  5. Step 5: Solve for x
    x = 6,740,287,967.84/92,873.79
  6. Step 6: Final answer
    x = 72,574.71

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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.