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Finding the Fourth Proportional to 255,683.79, 352,827.63 and 140,956.47

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Solution

The fourth proportional to 255,683.79, 352,827.63 and 140,956.47 is: 194,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,683.79 : 352,827.63 = 140,956.47 : x
  2. Step 2: Convert to fraction form
    255,683.79/352,827.63 = 140,956.47/x
  3. Step 3: Cross multiply
    255,683.79x = 352,827.63 × 140,956.47
  4. Step 4: Simplify right side
    255,683.79x = 49,733,337,243.27
  5. Step 5: Solve for x
    x = 49,733,337,243.27/255,683.79
  6. Step 6: Final answer
    x = 194,511.11

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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.