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Finding the Fourth Proportional to 199,353.60, 298,793.60 and 105,811.20

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Solution

The fourth proportional to 199,353.60, 298,793.60 and 105,811.20 is: 158,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,353.60 : 298,793.60 = 105,811.20 : x
  2. Step 2: Convert to fraction form
    199,353.60/298,793.60 = 105,811.20/x
  3. Step 3: Cross multiply
    199,353.60x = 298,793.60 × 105,811.20
  4. Step 4: Simplify right side
    199,353.60x = 31,615,709,368.32
  5. Step 5: Solve for x
    x = 31,615,709,368.32/199,353.60
  6. Step 6: Final answer
    x = 158,591.11

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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.