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Finding the Fourth Proportional to 169,290.87, 233,624.01 and 92,817.28

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Solution

The fourth proportional to 169,290.87, 233,624.01 and 92,817.28 is: 128,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,290.87 : 233,624.01 = 92,817.28 : x
  2. Step 2: Convert to fraction form
    169,290.87/233,624.01 = 92,817.28/x
  3. Step 3: Cross multiply
    169,290.87x = 233,624.01 × 92,817.28
  4. Step 4: Simplify right side
    169,290.87x = 21,684,345,150.89
  5. Step 5: Solve for x
    x = 21,684,345,150.89/169,290.87
  6. Step 6: Final answer
    x = 128,089.28

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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.