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Finding the Fourth Proportional to 180,966.90, 271,390.90 and 60,991.66

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Solution

The fourth proportional to 180,966.90, 271,390.90 and 60,991.66 is: 91,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,966.90 : 271,390.90 = 60,991.66 : x
  2. Step 2: Convert to fraction form
    180,966.90/271,390.90 = 60,991.66/x
  3. Step 3: Cross multiply
    180,966.90x = 271,390.90 × 60,991.66
  4. Step 4: Simplify right side
    180,966.90x = 16,552,581,499.89
  5. Step 5: Solve for x
    x = 16,552,581,499.89/180,966.90
  6. Step 6: Final answer
    x = 91,467.45

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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.