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Finding the Fourth Proportional to 124,866.36, 172,314 and 68,277.60

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Solution

The fourth proportional to 124,866.36, 172,314 and 68,277.60 is: 94,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,866.36 : 172,314 = 68,277.60 : x
  2. Step 2: Convert to fraction form
    124,866.36/172,314 = 68,277.60/x
  3. Step 3: Cross multiply
    124,866.36x = 172,314 × 68,277.60
  4. Step 4: Simplify right side
    124,866.36x = 11,765,186,366.40
  5. Step 5: Solve for x
    x = 11,765,186,366.40/124,866.36
  6. Step 6: Final answer
    x = 94,222.23

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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.