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Finding the Fourth Proportional to 159,338.66, 239,014.58 and 47,018.87

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Solution

The fourth proportional to 159,338.66, 239,014.58 and 47,018.87 is: 70,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,338.66 : 239,014.58 = 47,018.87 : x
  2. Step 2: Convert to fraction form
    159,338.66/239,014.58 = 47,018.87/x
  3. Step 3: Cross multiply
    159,338.66x = 239,014.58 × 47,018.87
  4. Step 4: Simplify right side
    159,338.66x = 11,238,195,465.12
  5. Step 5: Solve for x
    x = 11,238,195,465.12/159,338.66
  6. Step 6: Final answer
    x = 70,530.25

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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.