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Finding the Fourth Proportional to 235,248.20, 324,636.90 and 127,815.80

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Solution

The fourth proportional to 235,248.20, 324,636.90 and 127,815.80 is: 176,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,248.20 : 324,636.90 = 127,815.80 : x
  2. Step 2: Convert to fraction form
    235,248.20/324,636.90 = 127,815.80/x
  3. Step 3: Cross multiply
    235,248.20x = 324,636.90 × 127,815.80
  4. Step 4: Simplify right side
    235,248.20x = 41,493,725,083.02
  5. Step 5: Solve for x
    x = 41,493,725,083.02/235,248.20
  6. Step 6: Final answer
    x = 176,382.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.