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Finding the Fourth Proportional to 140,464.67, 210,665.61 and 40,602.60

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Solution

The fourth proportional to 140,464.67, 210,665.61 and 40,602.60 is: 60,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,464.67 : 210,665.61 = 40,602.60 : x
  2. Step 2: Convert to fraction form
    140,464.67/210,665.61 = 40,602.60/x
  3. Step 3: Cross multiply
    140,464.67x = 210,665.61 × 40,602.60
  4. Step 4: Simplify right side
    140,464.67x = 8,553,571,496.59
  5. Step 5: Solve for x
    x = 8,553,571,496.59/140,464.67
  6. Step 6: Final answer
    x = 60,894.83

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1.5x scale

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.