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Finding the Fourth Proportional to 113,573.84, 170,172.43 and 69,065.96

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Solution

The fourth proportional to 113,573.84, 170,172.43 and 69,065.96 is: 103,484.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,573.84 : 170,172.43 = 69,065.96 : x
  2. Step 2: Convert to fraction form
    113,573.84/170,172.43 = 69,065.96/x
  3. Step 3: Cross multiply
    113,573.84x = 170,172.43 × 69,065.96
  4. Step 4: Simplify right side
    113,573.84x = 11,753,122,496.25
  5. Step 5: Solve for x
    x = 11,753,122,496.25/113,573.84
  6. Step 6: Final answer
    x = 103,484.41

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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.