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Finding the Fourth Proportional to 123,762.54, 170,792.49 and 67,173.93

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Solution

The fourth proportional to 123,762.54, 170,792.49 and 67,173.93 is: 92,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,762.54 : 170,792.49 = 67,173.93 : x
  2. Step 2: Convert to fraction form
    123,762.54/170,792.49 = 67,173.93/x
  3. Step 3: Cross multiply
    123,762.54x = 170,792.49 × 67,173.93
  4. Step 4: Simplify right side
    123,762.54x = 11,472,802,767.79
  5. Step 5: Solve for x
    x = 11,472,802,767.79/123,762.54
  6. Step 6: Final answer
    x = 92,700.12

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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.