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Finding the Fourth Proportional to 122,302.70, 183,486.45 and 43,408.70

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Solution

The fourth proportional to 122,302.70, 183,486.45 and 43,408.70 is: 65,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,302.70 : 183,486.45 = 43,408.70 : x
  2. Step 2: Convert to fraction form
    122,302.70/183,486.45 = 43,408.70/x
  3. Step 3: Cross multiply
    122,302.70x = 183,486.45 × 43,408.70
  4. Step 4: Simplify right side
    122,302.70x = 7,964,908,262.12
  5. Step 5: Solve for x
    x = 7,964,908,262.12/122,302.70
  6. Step 6: Final answer
    x = 65,124.55

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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.