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Finding the Fourth Proportional to 105,951.60, 158,846.40 and 53,398.80

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Solution

The fourth proportional to 105,951.60, 158,846.40 and 53,398.80 is: 80,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,951.60 : 158,846.40 = 53,398.80 : x
  2. Step 2: Convert to fraction form
    105,951.60/158,846.40 = 53,398.80/x
  3. Step 3: Cross multiply
    105,951.60x = 158,846.40 × 53,398.80
  4. Step 4: Simplify right side
    105,951.60x = 8,482,207,144.32
  5. Step 5: Solve for x
    x = 8,482,207,144.32/105,951.60
  6. Step 6: Final answer
    x = 80,057.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.