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Finding the Fourth Proportional to 193,155.40, 289,688.80 and 52,924.96

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Solution

The fourth proportional to 193,155.40, 289,688.80 and 52,924.96 is: 79,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,155.40 : 289,688.80 = 52,924.96 : x
  2. Step 2: Convert to fraction form
    193,155.40/289,688.80 = 52,924.96/x
  3. Step 3: Cross multiply
    193,155.40x = 289,688.80 × 52,924.96
  4. Step 4: Simplify right side
    193,155.40x = 15,331,768,152.45
  5. Step 5: Solve for x
    x = 15,331,768,152.45/193,155.40
  6. Step 6: Final answer
    x = 79,375.30

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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.