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Finding the Fourth Proportional to 353,440.71, 530,210.31 and 113,561.84

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Solution

The fourth proportional to 353,440.71, 530,210.31 and 113,561.84 is: 170,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,440.71 : 530,210.31 = 113,561.84 : x
  2. Step 2: Convert to fraction form
    353,440.71/530,210.31 = 113,561.84/x
  3. Step 3: Cross multiply
    353,440.71x = 530,210.31 × 113,561.84
  4. Step 4: Simplify right side
    353,440.71x = 60,211,659,290.24
  5. Step 5: Solve for x
    x = 60,211,659,290.24/353,440.71
  6. Step 6: Final answer
    x = 170,358.59

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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.