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Finding the Fourth Proportional to 159,011.60, 238,502.72 and 53,818.48

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Solution

The fourth proportional to 159,011.60, 238,502.72 and 53,818.48 is: 80,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,011.60 : 238,502.72 = 53,818.48 : x
  2. Step 2: Convert to fraction form
    159,011.60/238,502.72 = 53,818.48/x
  3. Step 3: Cross multiply
    159,011.60x = 238,502.72 × 53,818.48
  4. Step 4: Simplify right side
    159,011.60x = 12,835,853,866.27
  5. Step 5: Solve for x
    x = 12,835,853,866.27/159,011.60
  6. Step 6: Final answer
    x = 80,722.75

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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.