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Finding the Fourth Proportional to 143,574.37, 215,371.44 and 48,765.87

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Solution

The fourth proportional to 143,574.37, 215,371.44 and 48,765.87 is: 73,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,574.37 : 215,371.44 = 48,765.87 : x
  2. Step 2: Convert to fraction form
    143,574.37/215,371.44 = 48,765.87/x
  3. Step 3: Cross multiply
    143,574.37x = 215,371.44 × 48,765.87
  4. Step 4: Simplify right side
    143,574.37x = 10,502,775,644.75
  5. Step 5: Solve for x
    x = 10,502,775,644.75/143,574.37
  6. Step 6: Final answer
    x = 73,152.16

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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.