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Finding the Fourth Proportional to 70,046.84, 104,453.34 and 69,415.04

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Solution

The fourth proportional to 70,046.84, 104,453.34 and 69,415.04 is: 103,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046.84 : 104,453.34 = 69,415.04 : x
  2. Step 2: Convert to fraction form
    70,046.84/104,453.34 = 69,415.04/x
  3. Step 3: Cross multiply
    70,046.84x = 104,453.34 × 69,415.04
  4. Step 4: Simplify right side
    70,046.84x = 7,250,632,774.23
  5. Step 5: Solve for x
    x = 7,250,632,774.23/70,046.84
  6. Step 6: Final answer
    x = 103,511.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.