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Finding the Fourth Proportional to 229,790.04, 317,105.76 and 127,813.32

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Solution

The fourth proportional to 229,790.04, 317,105.76 and 127,813.32 is: 176,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,790.04 : 317,105.76 = 127,813.32 : x
  2. Step 2: Convert to fraction form
    229,790.04/317,105.76 = 127,813.32/x
  3. Step 3: Cross multiply
    229,790.04x = 317,105.76 × 127,813.32
  4. Step 4: Simplify right side
    229,790.04x = 40,530,339,976.72
  5. Step 5: Solve for x
    x = 40,530,339,976.72/229,790.04
  6. Step 6: Final answer
    x = 176,379.88

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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.