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Finding the Fourth Proportional to 250,350.40, 375,041.70 and 139,205.44

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Solution

The fourth proportional to 250,350.40, 375,041.70 and 139,205.44 is: 208,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,350.40 : 375,041.70 = 139,205.44 : x
  2. Step 2: Convert to fraction form
    250,350.40/375,041.70 = 139,205.44/x
  3. Step 3: Cross multiply
    250,350.40x = 375,041.70 × 139,205.44
  4. Step 4: Simplify right side
    250,350.40x = 52,207,844,866.85
  5. Step 5: Solve for x
    x = 52,207,844,866.85/250,350.40
  6. Step 6: Final answer
    x = 208,539.09

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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.