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Finding the Fourth Proportional to 221,083.95, 305,009.24 and 136,053.39

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Solution

The fourth proportional to 221,083.95, 305,009.24 and 136,053.39 is: 187,700.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,083.95 : 305,009.24 = 136,053.39 : x
  2. Step 2: Convert to fraction form
    221,083.95/305,009.24 = 136,053.39/x
  3. Step 3: Cross multiply
    221,083.95x = 305,009.24 × 136,053.39
  4. Step 4: Simplify right side
    221,083.95x = 41,497,540,403.06
  5. Step 5: Solve for x
    x = 41,497,540,403.06/221,083.95
  6. Step 6: Final answer
    x = 187,700.38

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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.