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Finding the Fourth Proportional to 389,163.34, 583,696.68 and 104,876.12

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Solution

The fourth proportional to 389,163.34, 583,696.68 and 104,876.12 is: 157,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,163.34 : 583,696.68 = 104,876.12 : x
  2. Step 2: Convert to fraction form
    389,163.34/583,696.68 = 104,876.12/x
  3. Step 3: Cross multiply
    389,163.34x = 583,696.68 × 104,876.12
  4. Step 4: Simplify right side
    389,163.34x = 61,215,841,427.87
  5. Step 5: Solve for x
    x = 61,215,841,427.87/389,163.34
  6. Step 6: Final answer
    x = 157,301.15

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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.