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Finding the Fourth Proportional to 213,370.80, 294,449.49 and 117,871.26

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Solution

The fourth proportional to 213,370.80, 294,449.49 and 117,871.26 is: 162,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,370.80 : 294,449.49 = 117,871.26 : x
  2. Step 2: Convert to fraction form
    213,370.80/294,449.49 = 117,871.26/x
  3. Step 3: Cross multiply
    213,370.80x = 294,449.49 × 117,871.26
  4. Step 4: Simplify right side
    213,370.80x = 34,707,132,392.66
  5. Step 5: Solve for x
    x = 34,707,132,392.66/213,370.80
  6. Step 6: Final answer
    x = 162,661.12

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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.