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Finding the Fourth Proportional to 207,351, 286,178.94 and 156,962.52

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Solution

The fourth proportional to 207,351, 286,178.94 and 156,962.52 is: 216,634.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,351 : 286,178.94 = 156,962.52 : x
  2. Step 2: Convert to fraction form
    207,351/286,178.94 = 156,962.52/x
  3. Step 3: Cross multiply
    207,351x = 286,178.94 × 156,962.52
  4. Step 4: Simplify right side
    207,351x = 44,919,367,593.33
  5. Step 5: Solve for x
    x = 44,919,367,593.33/207,351
  6. Step 6: Final answer
    x = 216,634.44

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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.