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Finding the Fourth Proportional to 69,814.39, 104,681.91 and 47,654.59

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Solution

The fourth proportional to 69,814.39, 104,681.91 and 47,654.59 is: 71,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,814.39 : 104,681.91 = 47,654.59 : x
  2. Step 2: Convert to fraction form
    69,814.39/104,681.91 = 47,654.59/x
  3. Step 3: Cross multiply
    69,814.39x = 104,681.91 × 47,654.59
  4. Step 4: Simplify right side
    69,814.39x = 4,988,573,239.76
  5. Step 5: Solve for x
    x = 4,988,573,239.76/69,814.39
  6. Step 6: Final answer
    x = 71,454.80

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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.