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Finding the Fourth Proportional to 257,168.33, 385,770.99 and 88,686.23

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Solution

The fourth proportional to 257,168.33, 385,770.99 and 88,686.23 is: 133,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,168.33 : 385,770.99 = 88,686.23 : x
  2. Step 2: Convert to fraction form
    257,168.33/385,770.99 = 88,686.23/x
  3. Step 3: Cross multiply
    257,168.33x = 385,770.99 × 88,686.23
  4. Step 4: Simplify right side
    257,168.33x = 34,212,572,651.33
  5. Step 5: Solve for x
    x = 34,212,572,651.33/257,168.33
  6. Step 6: Final answer
    x = 133,035.71

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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.