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Finding the Fourth Proportional to 262,923.70, 394,385.55 and 96,690.10

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Solution

The fourth proportional to 262,923.70, 394,385.55 and 96,690.10 is: 145,035.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,923.70 : 394,385.55 = 96,690.10 : x
  2. Step 2: Convert to fraction form
    262,923.70/394,385.55 = 96,690.10/x
  3. Step 3: Cross multiply
    262,923.70x = 394,385.55 × 96,690.10
  4. Step 4: Simplify right side
    262,923.70x = 38,133,178,268.06
  5. Step 5: Solve for x
    x = 38,133,178,268.06/262,923.70
  6. Step 6: Final answer
    x = 145,035.15

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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.