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Finding the Fourth Proportional to 118,672.29, 163,761.39 and 64,946.91

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Solution

The fourth proportional to 118,672.29, 163,761.39 and 64,946.91 is: 89,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,672.29 : 163,761.39 = 64,946.91 : x
  2. Step 2: Convert to fraction form
    118,672.29/163,761.39 = 64,946.91/x
  3. Step 3: Cross multiply
    118,672.29x = 163,761.39 × 64,946.91
  4. Step 4: Simplify right side
    118,672.29x = 10,635,796,257.80
  5. Step 5: Solve for x
    x = 10,635,796,257.80/118,672.29
  6. Step 6: Final answer
    x = 89,623.25

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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.