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Finding the Fourth Proportional to 131,027.40, 196,541.10 and 61,043.40

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Solution

The fourth proportional to 131,027.40, 196,541.10 and 61,043.40 is: 91,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,027.40 : 196,541.10 = 61,043.40 : x
  2. Step 2: Convert to fraction form
    131,027.40/196,541.10 = 61,043.40/x
  3. Step 3: Cross multiply
    131,027.40x = 196,541.10 × 61,043.40
  4. Step 4: Simplify right side
    131,027.40x = 11,997,536,983.74
  5. Step 5: Solve for x
    x = 11,997,536,983.74/131,027.40
  6. Step 6: Final answer
    x = 91,565.10

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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.