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Finding the Fourth Proportional to 216,822.60, 325,233.90 and 123,510.60

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Solution

The fourth proportional to 216,822.60, 325,233.90 and 123,510.60 is: 185,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,822.60 : 325,233.90 = 123,510.60 : x
  2. Step 2: Convert to fraction form
    216,822.60/325,233.90 = 123,510.60/x
  3. Step 3: Cross multiply
    216,822.60x = 325,233.90 × 123,510.60
  4. Step 4: Simplify right side
    216,822.60x = 40,169,834,129.34
  5. Step 5: Solve for x
    x = 40,169,834,129.34/216,822.60
  6. Step 6: Final answer
    x = 185,265.90

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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.