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Finding the Fourth Proportional to 356,467.40, 534,701.51 and 107,149.40

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Solution

The fourth proportional to 356,467.40, 534,701.51 and 107,149.40 is: 160,724.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,467.40 : 534,701.51 = 107,149.40 : x
  2. Step 2: Convert to fraction form
    356,467.40/534,701.51 = 107,149.40/x
  3. Step 3: Cross multiply
    356,467.40x = 534,701.51 × 107,149.40
  4. Step 4: Simplify right side
    356,467.40x = 57,292,945,975.59
  5. Step 5: Solve for x
    x = 57,292,945,975.59/356,467.40
  6. Step 6: Final answer
    x = 160,724.22

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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.