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Finding the Fourth Proportional to 118,238.79, 163,173.13 and 67,258.91

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Solution

The fourth proportional to 118,238.79, 163,173.13 and 67,258.91 is: 92,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,238.79 : 163,173.13 = 67,258.91 : x
  2. Step 2: Convert to fraction form
    118,238.79/163,173.13 = 67,258.91/x
  3. Step 3: Cross multiply
    118,238.79x = 163,173.13 × 67,258.91
  4. Step 4: Simplify right side
    118,238.79x = 10,974,846,565.36
  5. Step 5: Solve for x
    x = 10,974,846,565.36/118,238.79
  6. Step 6: Final answer
    x = 92,819.34

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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.