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Finding the Fourth Proportional to 70,009.26, 104,789.10 and 36,681.80

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Solution

The fourth proportional to 70,009.26, 104,789.10 and 36,681.80 is: 54,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,009.26 : 104,789.10 = 36,681.80 : x
  2. Step 2: Convert to fraction form
    70,009.26/104,789.10 = 36,681.80/x
  3. Step 3: Cross multiply
    70,009.26x = 104,789.10 × 36,681.80
  4. Step 4: Simplify right side
    70,009.26x = 3,843,852,808.38
  5. Step 5: Solve for x
    x = 3,843,852,808.38/70,009.26
  6. Step 6: Final answer
    x = 54,904.92

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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.