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Finding the Fourth Proportional to 539,970.62, 810,002.44 and 140,612.12

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Solution

The fourth proportional to 539,970.62, 810,002.44 and 140,612.12 is: 210,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,970.62 : 810,002.44 = 140,612.12 : x
  2. Step 2: Convert to fraction form
    539,970.62/810,002.44 = 140,612.12/x
  3. Step 3: Cross multiply
    539,970.62x = 810,002.44 × 140,612.12
  4. Step 4: Simplify right side
    539,970.62x = 113,896,160,293.57
  5. Step 5: Solve for x
    x = 113,896,160,293.57/539,970.62
  6. Step 6: Final answer
    x = 210,930.29

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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.