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Finding the Fourth Proportional to 250,713.88, 345,985.22 and 137,536.62

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Solution

The fourth proportional to 250,713.88, 345,985.22 and 137,536.62 is: 189,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,713.88 : 345,985.22 = 137,536.62 : x
  2. Step 2: Convert to fraction form
    250,713.88/345,985.22 = 137,536.62/x
  3. Step 3: Cross multiply
    250,713.88x = 345,985.22 × 137,536.62
  4. Step 4: Simplify right side
    250,713.88x = 47,585,637,728.76
  5. Step 5: Solve for x
    x = 47,585,637,728.76/250,713.88
  6. Step 6: Final answer
    x = 189,800.57

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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.