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Finding the Fourth Proportional to 84,247.91, 116,308.81 and 57,429.82

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Solution

The fourth proportional to 84,247.91, 116,308.81 and 57,429.82 is: 79,284.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,247.91 : 116,308.81 = 57,429.82 : x
  2. Step 2: Convert to fraction form
    84,247.91/116,308.81 = 57,429.82/x
  3. Step 3: Cross multiply
    84,247.91x = 116,308.81 × 57,429.82
  4. Step 4: Simplify right side
    84,247.91x = 6,679,594,022.71
  5. Step 5: Solve for x
    x = 6,679,594,022.71/84,247.91
  6. Step 6: Final answer
    x = 79,284.98

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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.