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Finding the Fourth Proportional to 109,324.78, 150,869.04 and 61,573.66

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Solution

The fourth proportional to 109,324.78, 150,869.04 and 61,573.66 is: 84,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,324.78 : 150,869.04 = 61,573.66 : x
  2. Step 2: Convert to fraction form
    109,324.78/150,869.04 = 61,573.66/x
  3. Step 3: Cross multiply
    109,324.78x = 150,869.04 × 61,573.66
  4. Step 4: Simplify right side
    109,324.78x = 9,289,558,973.49
  5. Step 5: Solve for x
    x = 9,289,558,973.49/109,324.78
  6. Step 6: Final answer
    x = 84,972.13

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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.