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Finding the Fourth Proportional to 213,117.80, 294,101.96 and 117,623.81

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Solution

The fourth proportional to 213,117.80, 294,101.96 and 117,623.81 is: 162,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,117.80 : 294,101.96 = 117,623.81 : x
  2. Step 2: Convert to fraction form
    213,117.80/294,101.96 = 117,623.81/x
  3. Step 3: Cross multiply
    213,117.80x = 294,101.96 × 117,623.81
  4. Step 4: Simplify right side
    213,117.80x = 34,593,393,872.44
  5. Step 5: Solve for x
    x = 34,593,393,872.44/213,117.80
  6. Step 6: Final answer
    x = 162,320.53

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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.