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Finding the Fourth Proportional to 159,406.56, 238,962.15 and 70,612.74

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Solution

The fourth proportional to 159,406.56, 238,962.15 and 70,612.74 is: 105,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,406.56 : 238,962.15 = 70,612.74 : x
  2. Step 2: Convert to fraction form
    159,406.56/238,962.15 = 70,612.74/x
  3. Step 3: Cross multiply
    159,406.56x = 238,962.15 × 70,612.74
  4. Step 4: Simplify right side
    159,406.56x = 16,873,772,167.79
  5. Step 5: Solve for x
    x = 16,873,772,167.79/159,406.56
  6. Step 6: Final answer
    x = 105,853.69

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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.