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Finding the Fourth Proportional to 250,645.50, 345,907.19 and 137,468.25

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Solution

The fourth proportional to 250,645.50, 345,907.19 and 137,468.25 is: 189,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,645.50 : 345,907.19 = 137,468.25 : x
  2. Step 2: Convert to fraction form
    250,645.50/345,907.19 = 137,468.25/x
  3. Step 3: Cross multiply
    250,645.50x = 345,907.19 × 137,468.25
  4. Step 4: Simplify right side
    250,645.50x = 47,551,256,415.39
  5. Step 5: Solve for x
    x = 47,551,256,415.39/250,645.50
  6. Step 6: Final answer
    x = 189,715.18

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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.