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Finding the Fourth Proportional to 253,611.53, 349,994.46 and 140,434.28

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Solution

The fourth proportional to 253,611.53, 349,994.46 and 140,434.28 is: 193,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,611.53 : 349,994.46 = 140,434.28 : x
  2. Step 2: Convert to fraction form
    253,611.53/349,994.46 = 140,434.28/x
  3. Step 3: Cross multiply
    253,611.53x = 349,994.46 × 140,434.28
  4. Step 4: Simplify right side
    253,611.53x = 49,151,219,994.09
  5. Step 5: Solve for x
    x = 49,151,219,994.09/253,611.53
  6. Step 6: Final answer
    x = 193,805.15

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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.