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Finding the Fourth Proportional to 213,124.57, 319,739.47 and 63,364.21

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Solution

The fourth proportional to 213,124.57, 319,739.47 and 63,364.21 is: 95,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,124.57 : 319,739.47 = 63,364.21 : x
  2. Step 2: Convert to fraction form
    213,124.57/319,739.47 = 63,364.21/x
  3. Step 3: Cross multiply
    213,124.57x = 319,739.47 × 63,364.21
  4. Step 4: Simplify right side
    213,124.57x = 20,260,037,964.61
  5. Step 5: Solve for x
    x = 20,260,037,964.61/213,124.57
  6. Step 6: Final answer
    x = 95,061.95

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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.