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Finding the Fourth Proportional to 349,625.60, 524,092.80 and 138,982.40

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Solution

The fourth proportional to 349,625.60, 524,092.80 and 138,982.40 is: 208,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,625.60 : 524,092.80 = 138,982.40 : x
  2. Step 2: Convert to fraction form
    349,625.60/524,092.80 = 138,982.40/x
  3. Step 3: Cross multiply
    349,625.60x = 524,092.80 × 138,982.40
  4. Step 4: Simplify right side
    349,625.60x = 72,839,675,166.72
  5. Step 5: Solve for x
    x = 72,839,675,166.72/349,625.60
  6. Step 6: Final answer
    x = 208,336.22

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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.