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Finding the Fourth Proportional to 220,969.60, 331,569.60 and 96,323.20

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Solution

The fourth proportional to 220,969.60, 331,569.60 and 96,323.20 is: 144,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,969.60 : 331,569.60 = 96,323.20 : x
  2. Step 2: Convert to fraction form
    220,969.60/331,569.60 = 96,323.20/x
  3. Step 3: Cross multiply
    220,969.60x = 331,569.60 × 96,323.20
  4. Step 4: Simplify right side
    220,969.60x = 31,937,844,894.72
  5. Step 5: Solve for x
    x = 31,937,844,894.72/220,969.60
  6. Step 6: Final answer
    x = 144,535.02

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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.