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Finding the Fourth Proportional to 117,968.40, 176,952.60 and 73,645.20

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Solution

The fourth proportional to 117,968.40, 176,952.60 and 73,645.20 is: 110,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,968.40 : 176,952.60 = 73,645.20 : x
  2. Step 2: Convert to fraction form
    117,968.40/176,952.60 = 73,645.20/x
  3. Step 3: Cross multiply
    117,968.40x = 176,952.60 × 73,645.20
  4. Step 4: Simplify right side
    117,968.40x = 13,031,709,617.52
  5. Step 5: Solve for x
    x = 13,031,709,617.52/117,968.40
  6. Step 6: Final answer
    x = 110,467.80

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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.