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Finding the Fourth Proportional to 69,521.51, 104,301.86 and 19,602.06

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Solution

The fourth proportional to 69,521.51, 104,301.86 and 19,602.06 is: 29,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,521.51 : 104,301.86 = 19,602.06 : x
  2. Step 2: Convert to fraction form
    69,521.51/104,301.86 = 19,602.06/x
  3. Step 3: Cross multiply
    69,521.51x = 104,301.86 × 19,602.06
  4. Step 4: Simplify right side
    69,521.51x = 2,044,531,317.83
  5. Step 5: Solve for x
    x = 2,044,531,317.83/69,521.51
  6. Step 6: Final answer
    x = 29,408.61

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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.