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Finding the Fourth Proportional to 354,265.14, 531,398.28 and 107,790.93

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Solution

The fourth proportional to 354,265.14, 531,398.28 and 107,790.93 is: 161,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,265.14 : 531,398.28 = 107,790.93 : x
  2. Step 2: Convert to fraction form
    354,265.14/531,398.28 = 107,790.93/x
  3. Step 3: Cross multiply
    354,265.14x = 531,398.28 × 107,790.93
  4. Step 4: Simplify right side
    354,265.14x = 57,279,914,801.60
  5. Step 5: Solve for x
    x = 57,279,914,801.60/354,265.14
  6. Step 6: Final answer
    x = 161,686.57

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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.