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Finding the Fourth Proportional to 159,387.88, 238,970.84 and 70,593.25

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Solution

The fourth proportional to 159,387.88, 238,970.84 and 70,593.25 is: 105,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,387.88 : 238,970.84 = 70,593.25 : x
  2. Step 2: Convert to fraction form
    159,387.88/238,970.84 = 70,593.25/x
  3. Step 3: Cross multiply
    159,387.88x = 238,970.84 × 70,593.25
  4. Step 4: Simplify right side
    159,387.88x = 16,869,727,829.89
  5. Step 5: Solve for x
    x = 16,869,727,829.89/159,387.88
  6. Step 6: Final answer
    x = 105,840.72

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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.