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Finding the Fourth Proportional to 69,436.66, 104,071.47 and 39,873.46

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Solution

The fourth proportional to 69,436.66, 104,071.47 and 39,873.46 is: 59,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,436.66 : 104,071.47 = 39,873.46 : x
  2. Step 2: Convert to fraction form
    69,436.66/104,071.47 = 39,873.46/x
  3. Step 3: Cross multiply
    69,436.66x = 104,071.47 × 39,873.46
  4. Step 4: Simplify right side
    69,436.66x = 4,149,689,596.19
  5. Step 5: Solve for x
    x = 4,149,689,596.19/69,436.66
  6. Step 6: Final answer
    x = 59,762.23

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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.