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Finding the Fourth Proportional to 216,087.75, 298,203.80 and 125,447.54

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Solution

The fourth proportional to 216,087.75, 298,203.80 and 125,447.54 is: 173,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,087.75 : 298,203.80 = 125,447.54 : x
  2. Step 2: Convert to fraction form
    216,087.75/298,203.80 = 125,447.54/x
  3. Step 3: Cross multiply
    216,087.75x = 298,203.80 × 125,447.54
  4. Step 4: Simplify right side
    216,087.75x = 37,408,931,010.40
  5. Step 5: Solve for x
    x = 37,408,931,010.40/216,087.75
  6. Step 6: Final answer
    x = 173,119.17

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1.5x scale

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.