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Finding the Fourth Proportional to 267,203.61, 400,795.70 and 80,210.25

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Solution

The fourth proportional to 267,203.61, 400,795.70 and 80,210.25 is: 120,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,203.61 : 400,795.70 = 80,210.25 : x
  2. Step 2: Convert to fraction form
    267,203.61/400,795.70 = 80,210.25/x
  3. Step 3: Cross multiply
    267,203.61x = 400,795.70 × 80,210.25
  4. Step 4: Simplify right side
    267,203.61x = 32,147,922,894.87
  5. Step 5: Solve for x
    x = 32,147,922,894.87/267,203.61
  6. Step 6: Final answer
    x = 120,312.46

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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.