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Finding the Fourth Proportional to 329,321.64, 454,490.55 and 186,111.39

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Solution

The fourth proportional to 329,321.64, 454,490.55 and 186,111.39 is: 256,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,321.64 : 454,490.55 = 186,111.39 : x
  2. Step 2: Convert to fraction form
    329,321.64/454,490.55 = 186,111.39/x
  3. Step 3: Cross multiply
    329,321.64x = 454,490.55 × 186,111.39
  4. Step 4: Simplify right side
    329,321.64x = 84,585,868,002.36
  5. Step 5: Solve for x
    x = 84,585,868,002.36/329,321.64
  6. Step 6: Final answer
    x = 256,848.80

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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.