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Finding the Fourth Proportional to 84,354.92, 116,439.08 and 54,222.92

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Solution

The fourth proportional to 84,354.92, 116,439.08 and 54,222.92 is: 74,846.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,354.92 : 116,439.08 = 54,222.92 : x
  2. Step 2: Convert to fraction form
    84,354.92/116,439.08 = 54,222.92/x
  3. Step 3: Cross multiply
    84,354.92x = 116,439.08 × 54,222.92
  4. Step 4: Simplify right side
    84,354.92x = 6,313,666,919.71
  5. Step 5: Solve for x
    x = 6,313,666,919.71/84,354.92
  6. Step 6: Final answer
    x = 74,846.46

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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.