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Finding the Fourth Proportional to 323,820.43, 485,731.55 and 124,202.00

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Solution

The fourth proportional to 323,820.43, 485,731.55 and 124,202.00 is: 186,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,820.43 : 485,731.55 = 124,202.00 : x
  2. Step 2: Convert to fraction form
    323,820.43/485,731.55 = 124,202.00/x
  3. Step 3: Cross multiply
    323,820.43x = 485,731.55 × 124,202.00
  4. Step 4: Simplify right side
    323,820.43x = 60,328,830,566.42
  5. Step 5: Solve for x
    x = 60,328,830,566.42/323,820.43
  6. Step 6: Final answer
    x = 186,303.35

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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.