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Finding the Fourth Proportional to 111,059.70, 153,258.44 and 62,676.88

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Solution

The fourth proportional to 111,059.70, 153,258.44 and 62,676.88 is: 86,491.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,059.70 : 153,258.44 = 62,676.88 : x
  2. Step 2: Convert to fraction form
    111,059.70/153,258.44 = 62,676.88/x
  3. Step 3: Cross multiply
    111,059.70x = 153,258.44 × 62,676.88
  4. Step 4: Simplify right side
    111,059.70x = 9,605,760,852.87
  5. Step 5: Solve for x
    x = 9,605,760,852.87/111,059.70
  6. Step 6: Final answer
    x = 86,491.87

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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.