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Finding the Fourth Proportional to 111,749.40, 167,624.10 and 64,510.20

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Solution

The fourth proportional to 111,749.40, 167,624.10 and 64,510.20 is: 96,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,749.40 : 167,624.10 = 64,510.20 : x
  2. Step 2: Convert to fraction form
    111,749.40/167,624.10 = 64,510.20/x
  3. Step 3: Cross multiply
    111,749.40x = 167,624.10 × 64,510.20
  4. Step 4: Simplify right side
    111,749.40x = 10,813,464,215.82
  5. Step 5: Solve for x
    x = 10,813,464,215.82/111,749.40
  6. Step 6: Final answer
    x = 96,765.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.