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Finding the Fourth Proportional to 111,570.56, 167,355.90 and 70,046.72

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Solution

The fourth proportional to 111,570.56, 167,355.90 and 70,046.72 is: 105,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,570.56 : 167,355.90 = 70,046.72 : x
  2. Step 2: Convert to fraction form
    111,570.56/167,355.90 = 70,046.72/x
  3. Step 3: Cross multiply
    111,570.56x = 167,355.90 × 70,046.72
  4. Step 4: Simplify right side
    111,570.56x = 11,722,731,867.65
  5. Step 5: Solve for x
    x = 11,722,731,867.65/111,570.56
  6. Step 6: Final answer
    x = 105,070.12

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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.