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Finding the Fourth Proportional to 163,930.80, 245,896.20 and 116,691.60

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Solution

The fourth proportional to 163,930.80, 245,896.20 and 116,691.60 is: 175,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,930.80 : 245,896.20 = 116,691.60 : x
  2. Step 2: Convert to fraction form
    163,930.80/245,896.20 = 116,691.60/x
  3. Step 3: Cross multiply
    163,930.80x = 245,896.20 × 116,691.60
  4. Step 4: Simplify right side
    163,930.80x = 28,694,021,011.92
  5. Step 5: Solve for x
    x = 28,694,021,011.92/163,930.80
  6. Step 6: Final answer
    x = 175,037.40

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1.5x scale

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.