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Finding the Fourth Proportional to 156,689.20, 235,033.80 and 149,863.60

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Solution

The fourth proportional to 156,689.20, 235,033.80 and 149,863.60 is: 224,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,689.20 : 235,033.80 = 149,863.60 : x
  2. Step 2: Convert to fraction form
    156,689.20/235,033.80 = 149,863.60/x
  3. Step 3: Cross multiply
    156,689.20x = 235,033.80 × 149,863.60
  4. Step 4: Simplify right side
    156,689.20x = 35,223,011,389.68
  5. Step 5: Solve for x
    x = 35,223,011,389.68/156,689.20
  6. Step 6: Final answer
    x = 224,795.40

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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.