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Finding the Fourth Proportional to 77,392.65, 106,657.24 and 60,369.93

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Solution

The fourth proportional to 77,392.65, 106,657.24 and 60,369.93 is: 83,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,392.65 : 106,657.24 = 60,369.93 : x
  2. Step 2: Convert to fraction form
    77,392.65/106,657.24 = 60,369.93/x
  3. Step 3: Cross multiply
    77,392.65x = 106,657.24 × 60,369.93
  4. Step 4: Simplify right side
    77,392.65x = 6,438,890,112.79
  5. Step 5: Solve for x
    x = 6,438,890,112.79/77,392.65
  6. Step 6: Final answer
    x = 83,197.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.