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Finding the Fourth Proportional to 353,953.54, 530,636.37 and 140,589.82

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Solution

The fourth proportional to 353,953.54, 530,636.37 and 140,589.82 is: 210,767.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,953.54 : 530,636.37 = 140,589.82 : x
  2. Step 2: Convert to fraction form
    353,953.54/530,636.37 = 140,589.82/x
  3. Step 3: Cross multiply
    353,953.54x = 530,636.37 × 140,589.82
  4. Step 4: Simplify right side
    353,953.54x = 74,602,071,743.75
  5. Step 5: Solve for x
    x = 74,602,071,743.75/353,953.54
  6. Step 6: Final answer
    x = 210,767.98

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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.