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Finding the Fourth Proportional to 216,996.54, 300,026.64 and 190,061.76

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Solution

The fourth proportional to 216,996.54, 300,026.64 and 190,061.76 is: 262,785.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,996.54 : 300,026.64 = 190,061.76 : x
  2. Step 2: Convert to fraction form
    216,996.54/300,026.64 = 190,061.76/x
  3. Step 3: Cross multiply
    216,996.54x = 300,026.64 × 190,061.76
  4. Step 4: Simplify right side
    216,996.54x = 57,023,591,245.29
  5. Step 5: Solve for x
    x = 57,023,591,245.29/216,996.54
  6. Step 6: Final answer
    x = 262,785.72

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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.