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Finding the Fourth Proportional to 111,600.34, 154,009.56 and 61,299.34

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Solution

The fourth proportional to 111,600.34, 154,009.56 and 61,299.34 is: 84,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,600.34 : 154,009.56 = 61,299.34 : x
  2. Step 2: Convert to fraction form
    111,600.34/154,009.56 = 61,299.34/x
  3. Step 3: Cross multiply
    111,600.34x = 154,009.56 × 61,299.34
  4. Step 4: Simplify right side
    111,600.34x = 9,440,684,381.69
  5. Step 5: Solve for x
    x = 9,440,684,381.69/111,600.34
  6. Step 6: Final answer
    x = 84,593.69

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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.