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Finding the Fourth Proportional to 122,509.98, 183,717.42 and 47,620.26

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Solution

The fourth proportional to 122,509.98, 183,717.42 and 47,620.26 is: 71,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,509.98 : 183,717.42 = 47,620.26 : x
  2. Step 2: Convert to fraction form
    122,509.98/183,717.42 = 47,620.26/x
  3. Step 3: Cross multiply
    122,509.98x = 183,717.42 × 47,620.26
  4. Step 4: Simplify right side
    122,509.98x = 8,748,671,306.93
  5. Step 5: Solve for x
    x = 8,748,671,306.93/122,509.98
  6. Step 6: Final answer
    x = 71,411.91

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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.