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Finding the Fourth Proportional to 77,960.80, 116,746.80 and 62,408.80

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Solution

The fourth proportional to 77,960.80, 116,746.80 and 62,408.80 is: 93,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,960.80 : 116,746.80 = 62,408.80 : x
  2. Step 2: Convert to fraction form
    77,960.80/116,746.80 = 62,408.80/x
  3. Step 3: Cross multiply
    77,960.80x = 116,746.80 × 62,408.80
  4. Step 4: Simplify right side
    77,960.80x = 7,286,027,691.84
  5. Step 5: Solve for x
    x = 7,286,027,691.84/77,960.80
  6. Step 6: Final answer
    x = 93,457.58

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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.