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Finding the Fourth Proportional to 122,288.80, 183,202.80 and 62,922.40

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Solution

The fourth proportional to 122,288.80, 183,202.80 and 62,922.40 is: 94,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,288.80 : 183,202.80 = 62,922.40 : x
  2. Step 2: Convert to fraction form
    122,288.80/183,202.80 = 62,922.40/x
  3. Step 3: Cross multiply
    122,288.80x = 183,202.80 × 62,922.40
  4. Step 4: Simplify right side
    122,288.80x = 11,527,559,862.72
  5. Step 5: Solve for x
    x = 11,527,559,862.72/122,288.80
  6. Step 6: Final answer
    x = 94,265.05

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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.