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Finding the Fourth Proportional to 213,218.92, 294,274.99 and 131,594.82

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Solution

The fourth proportional to 213,218.92, 294,274.99 and 131,594.82 is: 181,621.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,218.92 : 294,274.99 = 131,594.82 : x
  2. Step 2: Convert to fraction form
    213,218.92/294,274.99 = 131,594.82/x
  3. Step 3: Cross multiply
    213,218.92x = 294,274.99 × 131,594.82
  4. Step 4: Simplify right side
    213,218.92x = 38,725,064,339.55
  5. Step 5: Solve for x
    x = 38,725,064,339.55/213,218.92
  6. Step 6: Final answer
    x = 181,621.14

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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.