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Finding the Fourth Proportional to 279,175.87, 385,263.84 and 151,852.24

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Solution

The fourth proportional to 279,175.87, 385,263.84 and 151,852.24 is: 209,556.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,175.87 : 385,263.84 = 151,852.24 : x
  2. Step 2: Convert to fraction form
    279,175.87/385,263.84 = 151,852.24/x
  3. Step 3: Cross multiply
    279,175.87x = 385,263.84 × 151,852.24
  4. Step 4: Simplify right side
    279,175.87x = 58,503,177,095.00
  5. Step 5: Solve for x
    x = 58,503,177,095.00/279,175.87
  6. Step 6: Final answer
    x = 209,556.71

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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.