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Finding the Fourth Proportional to 169,302.40, 253,974.59 and 55,411.09

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Solution

The fourth proportional to 169,302.40, 253,974.59 and 55,411.09 is: 83,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,302.40 : 253,974.59 = 55,411.09 : x
  2. Step 2: Convert to fraction form
    169,302.40/253,974.59 = 55,411.09/x
  3. Step 3: Cross multiply
    169,302.40x = 253,974.59 × 55,411.09
  4. Step 4: Simplify right side
    169,302.40x = 14,073,008,160.00
  5. Step 5: Solve for x
    x = 14,073,008,160.00/169,302.40
  6. Step 6: Final answer
    x = 83,123.50

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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.