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Finding the Fourth Proportional to 353,940.04, 530,616.19 and 140,576.32

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Solution

The fourth proportional to 353,940.04, 530,616.19 and 140,576.32 is: 210,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,940.04 : 530,616.19 = 140,576.32 : x
  2. Step 2: Convert to fraction form
    353,940.04/530,616.19 = 140,576.32/x
  3. Step 3: Cross multiply
    353,940.04x = 530,616.19 × 140,576.32
  4. Step 4: Simplify right side
    353,940.04x = 74,592,071,322.62
  5. Step 5: Solve for x
    x = 74,592,071,322.62/353,940.04
  6. Step 6: Final answer
    x = 210,747.76

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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.