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Finding the Fourth Proportional to 279,160.80, 385,222.95 and 151,833.66

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Solution

The fourth proportional to 279,160.80, 385,222.95 and 151,833.66 is: 209,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,160.80 : 385,222.95 = 151,833.66 : x
  2. Step 2: Convert to fraction form
    279,160.80/385,222.95 = 151,833.66/x
  3. Step 3: Cross multiply
    279,160.80x = 385,222.95 × 151,833.66
  4. Step 4: Simplify right side
    279,160.80x = 58,489,810,414.50
  5. Step 5: Solve for x
    x = 58,489,810,414.50/279,160.80
  6. Step 6: Final answer
    x = 209,520.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.