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Finding the Fourth Proportional to 131,446.70, 197,062.05 and 56,624.30

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Solution

The fourth proportional to 131,446.70, 197,062.05 and 56,624.30 is: 84,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,446.70 : 197,062.05 = 56,624.30 : x
  2. Step 2: Convert to fraction form
    131,446.70/197,062.05 = 56,624.30/x
  3. Step 3: Cross multiply
    131,446.70x = 197,062.05 × 56,624.30
  4. Step 4: Simplify right side
    131,446.70x = 11,158,500,637.82
  5. Step 5: Solve for x
    x = 11,158,500,637.82/131,446.70
  6. Step 6: Final answer
    x = 84,889.93

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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.