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Finding the Fourth Proportional to 69,672.16, 104,642.72 and 59,699.44

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Solution

The fourth proportional to 69,672.16, 104,642.72 and 59,699.44 is: 89,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,672.16 : 104,642.72 = 59,699.44 : x
  2. Step 2: Convert to fraction form
    69,672.16/104,642.72 = 59,699.44/x
  3. Step 3: Cross multiply
    69,672.16x = 104,642.72 × 59,699.44
  4. Step 4: Simplify right side
    69,672.16x = 6,247,111,784.08
  5. Step 5: Solve for x
    x = 6,247,111,784.08/69,672.16
  6. Step 6: Final answer
    x = 89,664.39

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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.