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Finding the Fourth Proportional to 122,510.88, 183,720.96 and 43,603.92

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Solution

The fourth proportional to 122,510.88, 183,720.96 and 43,603.92 is: 65,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,510.88 : 183,720.96 = 43,603.92 : x
  2. Step 2: Convert to fraction form
    122,510.88/183,720.96 = 43,603.92/x
  3. Step 3: Cross multiply
    122,510.88x = 183,720.96 × 43,603.92
  4. Step 4: Simplify right side
    122,510.88x = 8,010,954,042.16
  5. Step 5: Solve for x
    x = 8,010,954,042.16/122,510.88
  6. Step 6: Final answer
    x = 65,389.74

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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.