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Finding the Fourth Proportional to 169,969.11, 254,917.22 and 70,103.40

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Solution

The fourth proportional to 169,969.11, 254,917.22 and 70,103.40 is: 105,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,969.11 : 254,917.22 = 70,103.40 : x
  2. Step 2: Convert to fraction form
    169,969.11/254,917.22 = 70,103.40/x
  3. Step 3: Cross multiply
    169,969.11x = 254,917.22 × 70,103.40
  4. Step 4: Simplify right side
    169,969.11x = 17,870,563,490.03
  5. Step 5: Solve for x
    x = 17,870,563,490.03/169,969.11
  6. Step 6: Final answer
    x = 105,140.07

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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.