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Finding the Fourth Proportional to 252,647.60, 348,660.03 and 143,745.94

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Solution

The fourth proportional to 252,647.60, 348,660.03 and 143,745.94 is: 198,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,647.60 : 348,660.03 = 143,745.94 : x
  2. Step 2: Convert to fraction form
    252,647.60/348,660.03 = 143,745.94/x
  3. Step 3: Cross multiply
    252,647.60x = 348,660.03 × 143,745.94
  4. Step 4: Simplify right side
    252,647.60x = 50,118,463,752.78
  5. Step 5: Solve for x
    x = 50,118,463,752.78/252,647.60
  6. Step 6: Final answer
    x = 198,373.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.