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Finding the Fourth Proportional to 254,773.76, 351,588.92 and 140,059.78

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Solution

The fourth proportional to 254,773.76, 351,588.92 and 140,059.78 is: 193,283.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,773.76 : 351,588.92 = 140,059.78 : x
  2. Step 2: Convert to fraction form
    254,773.76/351,588.92 = 140,059.78/x
  3. Step 3: Cross multiply
    254,773.76x = 351,588.92 × 140,059.78
  4. Step 4: Simplify right side
    254,773.76x = 49,243,467,079.50
  5. Step 5: Solve for x
    x = 49,243,467,079.50/254,773.76
  6. Step 6: Final answer
    x = 193,283.12

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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.