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Finding the Fourth Proportional to 216,362.76, 298,560.48 and 125,717.76

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Solution

The fourth proportional to 216,362.76, 298,560.48 and 125,717.76 is: 173,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,362.76 : 298,560.48 = 125,717.76 : x
  2. Step 2: Convert to fraction form
    216,362.76/298,560.48 = 125,717.76/x
  3. Step 3: Cross multiply
    216,362.76x = 298,560.48 × 125,717.76
  4. Step 4: Simplify right side
    216,362.76x = 37,534,354,770.12
  5. Step 5: Solve for x
    x = 37,534,354,770.12/216,362.76
  6. Step 6: Final answer
    x = 173,478.81

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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.