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Finding the Fourth Proportional to 124,806.80, 187,210.20 and 122,963.60

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Solution

The fourth proportional to 124,806.80, 187,210.20 and 122,963.60 is: 184,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,806.80 : 187,210.20 = 122,963.60 : x
  2. Step 2: Convert to fraction form
    124,806.80/187,210.20 = 122,963.60/x
  3. Step 3: Cross multiply
    124,806.80x = 187,210.20 × 122,963.60
  4. Step 4: Simplify right side
    124,806.80x = 23,020,040,148.72
  5. Step 5: Solve for x
    x = 23,020,040,148.72/124,806.80
  6. Step 6: Final answer
    x = 184,445.40

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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.