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Finding the Fourth Proportional to 122,615.61, 183,814.44 and 47,718.24

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Solution

The fourth proportional to 122,615.61, 183,814.44 and 47,718.24 is: 71,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,615.61 : 183,814.44 = 47,718.24 : x
  2. Step 2: Convert to fraction form
    122,615.61/183,814.44 = 47,718.24/x
  3. Step 3: Cross multiply
    122,615.61x = 183,814.44 × 47,718.24
  4. Step 4: Simplify right side
    122,615.61x = 8,771,301,563.39
  5. Step 5: Solve for x
    x = 8,771,301,563.39/122,615.61
  6. Step 6: Final answer
    x = 71,534.95

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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.