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Finding the Fourth Proportional to 90,536.50, 124,934.52 and 50,250.28

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Solution

The fourth proportional to 90,536.50, 124,934.52 and 50,250.28 is: 69,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,536.50 : 124,934.52 = 50,250.28 : x
  2. Step 2: Convert to fraction form
    90,536.50/124,934.52 = 50,250.28/x
  3. Step 3: Cross multiply
    90,536.50x = 124,934.52 × 50,250.28
  4. Step 4: Simplify right side
    90,536.50x = 6,277,994,611.67
  5. Step 5: Solve for x
    x = 6,277,994,611.67/90,536.50
  6. Step 6: Final answer
    x = 69,342.14

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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.