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Finding the Fourth Proportional to 252,311.97, 378,039.52 and 152,261.93

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Solution

The fourth proportional to 252,311.97, 378,039.52 and 152,261.93 is: 228,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,311.97 : 378,039.52 = 152,261.93 : x
  2. Step 2: Convert to fraction form
    252,311.97/378,039.52 = 152,261.93/x
  3. Step 3: Cross multiply
    252,311.97x = 378,039.52 × 152,261.93
  4. Step 4: Simplify right side
    252,311.97x = 57,561,027,457.75
  5. Step 5: Solve for x
    x = 57,561,027,457.75/252,311.97
  6. Step 6: Final answer
    x = 228,134.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.