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Finding the Fourth Proportional to 69,362.61, 104,061.54 and 19,442.93

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Solution

The fourth proportional to 69,362.61, 104,061.54 and 19,442.93 is: 29,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,362.61 : 104,061.54 = 19,442.93 : x
  2. Step 2: Convert to fraction form
    69,362.61/104,061.54 = 19,442.93/x
  3. Step 3: Cross multiply
    69,362.61x = 104,061.54 × 19,442.93
  4. Step 4: Simplify right side
    69,362.61x = 2,023,260,717.60
  5. Step 5: Solve for x
    x = 2,023,260,717.60/69,362.61
  6. Step 6: Final answer
    x = 29,169.33

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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.