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Finding the Fourth Proportional to 353,808.03, 530,158.22 and 140,460.71

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Solution

The fourth proportional to 353,808.03, 530,158.22 and 140,460.71 is: 210,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,808.03 : 530,158.22 = 140,460.71 : x
  2. Step 2: Convert to fraction form
    353,808.03/530,158.22 = 140,460.71/x
  3. Step 3: Cross multiply
    353,808.03x = 530,158.22 × 140,460.71
  4. Step 4: Simplify right side
    353,808.03x = 74,466,399,993.54
  5. Step 5: Solve for x
    x = 74,466,399,993.54/353,808.03
  6. Step 6: Final answer
    x = 210,471.20

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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.