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Finding the Fourth Proportional to 375,603.75, 563,627.04 and 139,112.49

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Solution

The fourth proportional to 375,603.75, 563,627.04 and 139,112.49 is: 208,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,603.75 : 563,627.04 = 139,112.49 : x
  2. Step 2: Convert to fraction form
    375,603.75/563,627.04 = 139,112.49/x
  3. Step 3: Cross multiply
    375,603.75x = 563,627.04 × 139,112.49
  4. Step 4: Simplify right side
    375,603.75x = 78,407,560,965.73
  5. Step 5: Solve for x
    x = 78,407,560,965.73/375,603.75
  6. Step 6: Final answer
    x = 208,750.74

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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.