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Finding the Fourth Proportional to 439,607.93, 659,404.73 and 140,084.46

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Solution

The fourth proportional to 439,607.93, 659,404.73 and 140,084.46 is: 210,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,607.93 : 659,404.73 = 140,084.46 : x
  2. Step 2: Convert to fraction form
    439,607.93/659,404.73 = 140,084.46/x
  3. Step 3: Cross multiply
    439,607.93x = 659,404.73 × 140,084.46
  4. Step 4: Simplify right side
    439,607.93x = 92,372,355,873.71
  5. Step 5: Solve for x
    x = 92,372,355,873.71/439,607.93
  6. Step 6: Final answer
    x = 210,124.41

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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.