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Finding the Fourth Proportional to 268,148.50, 402,222.53 and 68,468.92

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Solution

The fourth proportional to 268,148.50, 402,222.53 and 68,468.92 is: 102,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,148.50 : 402,222.53 = 68,468.92 : x
  2. Step 2: Convert to fraction form
    268,148.50/402,222.53 = 68,468.92/x
  3. Step 3: Cross multiply
    268,148.50x = 402,222.53 × 68,468.92
  4. Step 4: Simplify right side
    268,148.50x = 27,539,741,394.38
  5. Step 5: Solve for x
    x = 27,539,741,394.38/268,148.50
  6. Step 6: Final answer
    x = 102,703.32

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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.