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Finding the Fourth Proportional to 353,294.10, 530,116.38 and 140,057.52

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Solution

The fourth proportional to 353,294.10, 530,116.38 and 140,057.52 is: 210,155.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,294.10 : 530,116.38 = 140,057.52 : x
  2. Step 2: Convert to fraction form
    353,294.10/530,116.38 = 140,057.52/x
  3. Step 3: Cross multiply
    353,294.10x = 530,116.38 × 140,057.52
  4. Step 4: Simplify right side
    353,294.10x = 74,246,785,494.18
  5. Step 5: Solve for x
    x = 74,246,785,494.18/353,294.10
  6. Step 6: Final answer
    x = 210,155.75

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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.