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Finding the Fourth Proportional to 323,314.88, 485,044.68 and 98,695.28

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Solution

The fourth proportional to 323,314.88, 485,044.68 and 98,695.28 is: 148,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,314.88 : 485,044.68 = 98,695.28 : x
  2. Step 2: Convert to fraction form
    323,314.88/485,044.68 = 98,695.28/x
  3. Step 3: Cross multiply
    323,314.88x = 485,044.68 × 98,695.28
  4. Step 4: Simplify right side
    323,314.88x = 47,871,620,505.11
  5. Step 5: Solve for x
    x = 47,871,620,505.11/323,314.88
  6. Step 6: Final answer
    x = 148,065.01

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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.