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Finding the Fourth Proportional to 213,888.87, 320,722.74 and 93,896.82

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Solution

The fourth proportional to 213,888.87, 320,722.74 and 93,896.82 is: 140,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,888.87 : 320,722.74 = 93,896.82 : x
  2. Step 2: Convert to fraction form
    213,888.87/320,722.74 = 93,896.82/x
  3. Step 3: Cross multiply
    213,888.87x = 320,722.74 × 93,896.82
  4. Step 4: Simplify right side
    213,888.87x = 30,114,845,387.69
  5. Step 5: Solve for x
    x = 30,114,845,387.69/213,888.87
  6. Step 6: Final answer
    x = 140,796.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.