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Finding the Fourth Proportional to 235,406.76, 353,155.59 and 100,468.86

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Solution

The fourth proportional to 235,406.76, 353,155.59 and 100,468.86 is: 150,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,406.76 : 353,155.59 = 100,468.86 : x
  2. Step 2: Convert to fraction form
    235,406.76/353,155.59 = 100,468.86/x
  3. Step 3: Cross multiply
    235,406.76x = 353,155.59 × 100,468.86
  4. Step 4: Simplify right side
    235,406.76x = 35,481,139,529.93
  5. Step 5: Solve for x
    x = 35,481,139,529.93/235,406.76
  6. Step 6: Final answer
    x = 150,722.69

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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.