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Finding the Fourth Proportional to 192,543.68, 288,374.78 and 117,498.60

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Solution

The fourth proportional to 192,543.68, 288,374.78 and 117,498.60 is: 175,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,543.68 : 288,374.78 = 117,498.60 : x
  2. Step 2: Convert to fraction form
    192,543.68/288,374.78 = 117,498.60/x
  3. Step 3: Cross multiply
    192,543.68x = 288,374.78 × 117,498.60
  4. Step 4: Simplify right side
    192,543.68x = 33,883,633,219.05
  5. Step 5: Solve for x
    x = 33,883,633,219.05/192,543.68
  6. Step 6: Final answer
    x = 175,978.94

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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.