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Finding the Fourth Proportional to 329,805.98, 455,132.40 and 186,562.98

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Solution

The fourth proportional to 329,805.98, 455,132.40 and 186,562.98 is: 257,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,805.98 : 455,132.40 = 186,562.98 : x
  2. Step 2: Convert to fraction form
    329,805.98/455,132.40 = 186,562.98/x
  3. Step 3: Cross multiply
    329,805.98x = 455,132.40 × 186,562.98
  4. Step 4: Simplify right side
    329,805.98x = 84,910,856,838.55
  5. Step 5: Solve for x
    x = 84,910,856,838.55/329,805.98
  6. Step 6: Final answer
    x = 257,457.00

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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.