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Finding the Fourth Proportional to 78,752.70, 118,197.30 and 41,339.22

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Solution

The fourth proportional to 78,752.70, 118,197.30 and 41,339.22 is: 62,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,752.70 : 118,197.30 = 41,339.22 : x
  2. Step 2: Convert to fraction form
    78,752.70/118,197.30 = 41,339.22/x
  3. Step 3: Cross multiply
    78,752.70x = 118,197.30 × 41,339.22
  4. Step 4: Simplify right side
    78,752.70x = 4,886,184,188.11
  5. Step 5: Solve for x
    x = 4,886,184,188.11/78,752.70
  6. Step 6: Final answer
    x = 62,044.66

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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.