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Finding the Fourth Proportional to 118,592.88, 163,657.68 and 64,144.80

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Solution

The fourth proportional to 118,592.88, 163,657.68 and 64,144.80 is: 88,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,592.88 : 163,657.68 = 64,144.80 : x
  2. Step 2: Convert to fraction form
    118,592.88/163,657.68 = 64,144.80/x
  3. Step 3: Cross multiply
    118,592.88x = 163,657.68 × 64,144.80
  4. Step 4: Simplify right side
    118,592.88x = 10,497,789,152.06
  5. Step 5: Solve for x
    x = 10,497,789,152.06/118,592.88
  6. Step 6: Final answer
    x = 88,519.56

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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.