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Finding the Fourth Proportional to 118,803.96, 163,928.63 and 67,793.40

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Solution

The fourth proportional to 118,803.96, 163,928.63 and 67,793.40 is: 93,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,803.96 : 163,928.63 = 67,793.40 : x
  2. Step 2: Convert to fraction form
    118,803.96/163,928.63 = 67,793.40/x
  3. Step 3: Cross multiply
    118,803.96x = 163,928.63 × 67,793.40
  4. Step 4: Simplify right side
    118,803.96x = 11,113,278,846.08
  5. Step 5: Solve for x
    x = 11,113,278,846.08/118,803.96
  6. Step 6: Final answer
    x = 93,543.00

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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.