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Finding the Fourth Proportional to 159,390.39, 238,974.58 and 70,595.76

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Solution

The fourth proportional to 159,390.39, 238,974.58 and 70,595.76 is: 105,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,390.39 : 238,974.58 = 70,595.76 : x
  2. Step 2: Convert to fraction form
    159,390.39/238,974.58 = 70,595.76/x
  3. Step 3: Cross multiply
    159,390.39x = 238,974.58 × 70,595.76
  4. Step 4: Simplify right side
    159,390.39x = 16,870,592,095.78
  5. Step 5: Solve for x
    x = 16,870,592,095.78/159,390.39
  6. Step 6: Final answer
    x = 105,844.47

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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.