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Finding the Fourth Proportional to 216,625.71, 298,823.36 and 125,971.71

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Solution

The fourth proportional to 216,625.71, 298,823.36 and 125,971.71 is: 173,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,625.71 : 298,823.36 = 125,971.71 : x
  2. Step 2: Convert to fraction form
    216,625.71/298,823.36 = 125,971.71/x
  3. Step 3: Cross multiply
    216,625.71x = 298,823.36 × 125,971.71
  4. Step 4: Simplify right side
    216,625.71x = 37,643,289,017.29
  5. Step 5: Solve for x
    x = 37,643,289,017.29/216,625.71
  6. Step 6: Final answer
    x = 173,771.11

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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.