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Finding the Fourth Proportional to 213,117.68, 294,101.79 and 117,623.69

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Solution

The fourth proportional to 213,117.68, 294,101.79 and 117,623.69 is: 162,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,117.68 : 294,101.79 = 117,623.69 : x
  2. Step 2: Convert to fraction form
    213,117.68/294,101.79 = 117,623.69/x
  3. Step 3: Cross multiply
    213,117.68x = 294,101.79 × 117,623.69
  4. Step 4: Simplify right side
    213,117.68x = 34,593,337,775.41
  5. Step 5: Solve for x
    x = 34,593,337,775.41/213,117.68
  6. Step 6: Final answer
    x = 162,320.36

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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.