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Finding the Fourth Proportional to 259,212.50, 388,818.76 and 62,220.50

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Solution

The fourth proportional to 259,212.50, 388,818.76 and 62,220.50 is: 93,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,212.50 : 388,818.76 = 62,220.50 : x
  2. Step 2: Convert to fraction form
    259,212.50/388,818.76 = 62,220.50/x
  3. Step 3: Cross multiply
    259,212.50x = 388,818.76 × 62,220.50
  4. Step 4: Simplify right side
    259,212.50x = 24,192,497,656.58
  5. Step 5: Solve for x
    x = 24,192,497,656.58/259,212.50
  6. Step 6: Final answer
    x = 93,330.75

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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.