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Finding the Fourth Proportional to 323,622.16, 485,386.43 and 98,922.26

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Solution

The fourth proportional to 323,622.16, 485,386.43 and 98,922.26 is: 148,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,622.16 : 485,386.43 = 98,922.26 : x
  2. Step 2: Convert to fraction form
    323,622.16/485,386.43 = 98,922.26/x
  3. Step 3: Cross multiply
    323,622.16x = 485,386.43 × 98,922.26
  4. Step 4: Simplify right side
    323,622.16x = 48,015,523,347.79
  5. Step 5: Solve for x
    x = 48,015,523,347.79/323,622.16
  6. Step 6: Final answer
    x = 148,369.08

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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.