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Finding the Fourth Proportional to 88,749, 133,142.94 and 33,345

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Solution

The fourth proportional to 88,749, 133,142.94 and 33,345 is: 50,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,749 : 133,142.94 = 33,345 : x
  2. Step 2: Convert to fraction form
    88,749/133,142.94 = 33,345/x
  3. Step 3: Cross multiply
    88,749x = 133,142.94 × 33,345
  4. Step 4: Simplify right side
    88,749x = 4,439,651,334.30
  5. Step 5: Solve for x
    x = 4,439,651,334.30/88,749
  6. Step 6: Final answer
    x = 50,024.80

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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.