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Finding the Fourth Proportional to 124,415.82, 171,696.29 and 67,827.20

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Solution

The fourth proportional to 124,415.82, 171,696.29 and 67,827.20 is: 93,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,415.82 : 171,696.29 = 67,827.20 : x
  2. Step 2: Convert to fraction form
    124,415.82/171,696.29 = 67,827.20/x
  3. Step 3: Cross multiply
    124,415.82x = 171,696.29 × 67,827.20
  4. Step 4: Simplify right side
    124,415.82x = 11,645,677,403.47
  5. Step 5: Solve for x
    x = 11,645,677,403.47/124,415.82
  6. Step 6: Final answer
    x = 93,602.87

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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.