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Finding the Fourth Proportional to 107,457, 161,212.84 and 63,121.26

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Solution

The fourth proportional to 107,457, 161,212.84 and 63,121.26 is: 94,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,457 : 161,212.84 = 63,121.26 : x
  2. Step 2: Convert to fraction form
    107,457/161,212.84 = 63,121.26/x
  3. Step 3: Cross multiply
    107,457x = 161,212.84 × 63,121.26
  4. Step 4: Simplify right side
    107,457x = 10,175,957,588.98
  5. Step 5: Solve for x
    x = 10,175,957,588.98/107,457
  6. Step 6: Final answer
    x = 94,697.95

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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.