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Finding the Fourth Proportional to 68,502.69, 94,506.39 and 43,000.47

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Solution

The fourth proportional to 68,502.69, 94,506.39 and 43,000.47 is: 59,323.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,502.69 : 94,506.39 = 43,000.47 : x
  2. Step 2: Convert to fraction form
    68,502.69/94,506.39 = 43,000.47/x
  3. Step 3: Cross multiply
    68,502.69x = 94,506.39 × 43,000.47
  4. Step 4: Simplify right side
    68,502.69x = 4,063,819,188.00
  5. Step 5: Solve for x
    x = 4,063,819,188.00/68,502.69
  6. Step 6: Final answer
    x = 59,323.50

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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.