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Finding the Fourth Proportional to 109,908.80, 164,668.80 and 94,356.80

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Solution

The fourth proportional to 109,908.80, 164,668.80 and 94,356.80 is: 141,368.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,908.80 : 164,668.80 = 94,356.80 : x
  2. Step 2: Convert to fraction form
    109,908.80/164,668.80 = 94,356.80/x
  3. Step 3: Cross multiply
    109,908.80x = 164,668.80 × 94,356.80
  4. Step 4: Simplify right side
    109,908.80x = 15,537,621,027.84
  5. Step 5: Solve for x
    x = 15,537,621,027.84/109,908.80
  6. Step 6: Final answer
    x = 141,368.31

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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.