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Finding the Fourth Proportional to 89,437.56, 134,184.42 and 36,871.80

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Solution

The fourth proportional to 89,437.56, 134,184.42 and 36,871.80 is: 55,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,437.56 : 134,184.42 = 36,871.80 : x
  2. Step 2: Convert to fraction form
    89,437.56/134,184.42 = 36,871.80/x
  3. Step 3: Cross multiply
    89,437.56x = 134,184.42 × 36,871.80
  4. Step 4: Simplify right side
    89,437.56x = 4,947,621,097.36
  5. Step 5: Solve for x
    x = 4,947,621,097.36/89,437.56
  6. Step 6: Final answer
    x = 55,319.28

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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.