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Finding the Fourth Proportional to 69,672.66, 104,643.45 and 59,699.94

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Solution

The fourth proportional to 69,672.66, 104,643.45 and 59,699.94 is: 89,665.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,672.66 : 104,643.45 = 59,699.94 : x
  2. Step 2: Convert to fraction form
    69,672.66/104,643.45 = 59,699.94/x
  3. Step 3: Cross multiply
    69,672.66x = 104,643.45 × 59,699.94
  4. Step 4: Simplify right side
    69,672.66x = 6,247,207,686.39
  5. Step 5: Solve for x
    x = 6,247,207,686.39/69,672.66
  6. Step 6: Final answer
    x = 89,665.12

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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.