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Finding the Fourth Proportional to 329,767.56, 455,079.12 and 186,524.52

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Solution

The fourth proportional to 329,767.56, 455,079.12 and 186,524.52 is: 257,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,767.56 : 455,079.12 = 186,524.52 : x
  2. Step 2: Convert to fraction form
    329,767.56/455,079.12 = 186,524.52/x
  3. Step 3: Cross multiply
    329,767.56x = 455,079.12 × 186,524.52
  4. Step 4: Simplify right side
    329,767.56x = 84,883,414,420.02
  5. Step 5: Solve for x
    x = 84,883,414,420.02/329,767.56
  6. Step 6: Final answer
    x = 257,403.77

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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.