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Finding the Fourth Proportional to 159,739.02, 239,518.62 and 53,065.87

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Solution

The fourth proportional to 159,739.02, 239,518.62 and 53,065.87 is: 79,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,739.02 : 239,518.62 = 53,065.87 : x
  2. Step 2: Convert to fraction form
    159,739.02/239,518.62 = 53,065.87/x
  3. Step 3: Cross multiply
    159,739.02x = 239,518.62 × 53,065.87
  4. Step 4: Simplify right side
    159,739.02x = 12,710,263,352.70
  5. Step 5: Solve for x
    x = 12,710,263,352.70/159,739.02
  6. Step 6: Final answer
    x = 79,568.93

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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.