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Finding the Fourth Proportional to 111,733.48, 154,186.50 and 61,422.76

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Solution

The fourth proportional to 111,733.48, 154,186.50 and 61,422.76 is: 84,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,733.48 : 154,186.50 = 61,422.76 : x
  2. Step 2: Convert to fraction form
    111,733.48/154,186.50 = 61,422.76/x
  3. Step 3: Cross multiply
    111,733.48x = 154,186.50 × 61,422.76
  4. Step 4: Simplify right side
    111,733.48x = 9,470,560,384.74
  5. Step 5: Solve for x
    x = 9,470,560,384.74/111,733.48
  6. Step 6: Final answer
    x = 84,760.27

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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.