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Finding the Fourth Proportional to 159,389.39, 238,973.09 and 70,594.76

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Solution

The fourth proportional to 159,389.39, 238,973.09 and 70,594.76 is: 105,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,389.39 : 238,973.09 = 70,594.76 : x
  2. Step 2: Convert to fraction form
    159,389.39/238,973.09 = 70,594.76/x
  3. Step 3: Cross multiply
    159,389.39x = 238,973.09 × 70,594.76
  4. Step 4: Simplify right side
    159,389.39x = 16,870,246,387.17
  5. Step 5: Solve for x
    x = 16,870,246,387.17/159,389.39
  6. Step 6: Final answer
    x = 105,842.97

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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.