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Finding the Fourth Proportional to 169,428.47, 233,813.07 and 92,947.72

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Solution

The fourth proportional to 169,428.47, 233,813.07 and 92,947.72 is: 128,268.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,428.47 : 233,813.07 = 92,947.72 : x
  2. Step 2: Convert to fraction form
    169,428.47/233,813.07 = 92,947.72/x
  3. Step 3: Cross multiply
    169,428.47x = 233,813.07 × 92,947.72
  4. Step 4: Simplify right side
    169,428.47x = 21,732,391,762.70
  5. Step 5: Solve for x
    x = 21,732,391,762.70/169,428.47
  6. Step 6: Final answer
    x = 128,268.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.