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Finding the Fourth Proportional to 93,671.67, 129,282.21 and 69,632.31

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Solution

The fourth proportional to 93,671.67, 129,282.21 and 69,632.31 is: 96,103.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,671.67 : 129,282.21 = 69,632.31 : x
  2. Step 2: Convert to fraction form
    93,671.67/129,282.21 = 69,632.31/x
  3. Step 3: Cross multiply
    93,671.67x = 129,282.21 × 69,632.31
  4. Step 4: Simplify right side
    93,671.67x = 9,002,218,924.21
  5. Step 5: Solve for x
    x = 9,002,218,924.21/93,671.67
  6. Step 6: Final answer
    x = 96,103.97

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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.