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Finding the Fourth Proportional to 255,583.52, 352,690.86 and 140,861.81

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Solution

The fourth proportional to 255,583.52, 352,690.86 and 140,861.81 is: 194,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,583.52 : 352,690.86 = 140,861.81 : x
  2. Step 2: Convert to fraction form
    255,583.52/352,690.86 = 140,861.81/x
  3. Step 3: Cross multiply
    255,583.52x = 352,690.86 × 140,861.81
  4. Step 4: Simplify right side
    255,583.52x = 49,680,673,129.99
  5. Step 5: Solve for x
    x = 49,680,673,129.99/255,583.52
  6. Step 6: Final answer
    x = 194,381.36

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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.