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Finding the Fourth Proportional to 159,374.15, 239,087.17 and 47,065.72

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Solution

The fourth proportional to 159,374.15, 239,087.17 and 47,065.72 is: 70,606.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,374.15 : 239,087.17 = 47,065.72 : x
  2. Step 2: Convert to fraction form
    159,374.15/239,087.17 = 47,065.72/x
  3. Step 3: Cross multiply
    159,374.15x = 239,087.17 × 47,065.72
  4. Step 4: Simplify right side
    159,374.15x = 11,252,809,798.81
  5. Step 5: Solve for x
    x = 11,252,809,798.81/159,374.15
  6. Step 6: Final answer
    x = 70,606.24

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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.