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Finding the Fourth Proportional to 221,023.99, 305,020.59 and 124,244.69

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Solution

The fourth proportional to 221,023.99, 305,020.59 and 124,244.69 is: 171,461.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,023.99 : 305,020.59 = 124,244.69 : x
  2. Step 2: Convert to fraction form
    221,023.99/305,020.59 = 124,244.69/x
  3. Step 3: Cross multiply
    221,023.99x = 305,020.59 × 124,244.69
  4. Step 4: Simplify right side
    221,023.99x = 37,897,186,657.15
  5. Step 5: Solve for x
    x = 37,897,186,657.15/221,023.99
  6. Step 6: Final answer
    x = 171,461.87

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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.