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Finding the Fourth Proportional to 158,803.56, 238,245.30 and 70,081.56

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Solution

The fourth proportional to 158,803.56, 238,245.30 and 70,081.56 is: 105,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,803.56 : 238,245.30 = 70,081.56 : x
  2. Step 2: Convert to fraction form
    158,803.56/238,245.30 = 70,081.56/x
  3. Step 3: Cross multiply
    158,803.56x = 238,245.30 × 70,081.56
  4. Step 4: Simplify right side
    158,803.56x = 16,696,602,286.67
  5. Step 5: Solve for x
    x = 16,696,602,286.67/158,803.56
  6. Step 6: Final answer
    x = 105,139.97

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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.