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Finding the Fourth Proportional to 159,444.99, 239,134.68 and 70,641.86

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Solution

The fourth proportional to 159,444.99, 239,134.68 and 70,641.86 is: 105,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,444.99 : 239,134.68 = 70,641.86 : x
  2. Step 2: Convert to fraction form
    159,444.99/239,134.68 = 70,641.86/x
  3. Step 3: Cross multiply
    159,444.99x = 239,134.68 × 70,641.86
  4. Step 4: Simplify right side
    159,444.99x = 16,892,917,390.03
  5. Step 5: Solve for x
    x = 16,892,917,390.03/159,444.99
  6. Step 6: Final answer
    x = 105,948.25

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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.