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Finding the Fourth Proportional to 158,991.56, 238,472.76 and 53,798.48

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Solution

The fourth proportional to 158,991.56, 238,472.76 and 53,798.48 is: 80,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,991.56 : 238,472.76 = 53,798.48 : x
  2. Step 2: Convert to fraction form
    158,991.56/238,472.76 = 53,798.48/x
  3. Step 3: Cross multiply
    158,991.56x = 238,472.76 × 53,798.48
  4. Step 4: Simplify right side
    158,991.56x = 12,829,472,009.40
  5. Step 5: Solve for x
    x = 12,829,472,009.40/158,991.56
  6. Step 6: Final answer
    x = 80,692.79

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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.