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Finding the Fourth Proportional to 156,933.45, 235,400.18 and 156,933.45

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Solution

The fourth proportional to 156,933.45, 235,400.18 and 156,933.45 is: 235,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,933.45 : 235,400.18 = 156,933.45 : x
  2. Step 2: Convert to fraction form
    156,933.45/235,400.18 = 156,933.45/x
  3. Step 3: Cross multiply
    156,933.45x = 235,400.18 × 156,933.45
  4. Step 4: Simplify right side
    156,933.45x = 36,942,162,378.02
  5. Step 5: Solve for x
    x = 36,942,162,378.02/156,933.45
  6. Step 6: Final answer
    x = 235,400.18

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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.