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Finding the Fourth Proportional to 110,921.67, 153,071.91 and 60,620.67

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Solution

The fourth proportional to 110,921.67, 153,071.91 and 60,620.67 is: 83,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,921.67 : 153,071.91 = 60,620.67 : x
  2. Step 2: Convert to fraction form
    110,921.67/153,071.91 = 60,620.67/x
  3. Step 3: Cross multiply
    110,921.67x = 153,071.91 × 60,620.67
  4. Step 4: Simplify right side
    110,921.67x = 9,279,321,742.38
  5. Step 5: Solve for x
    x = 9,279,321,742.38/110,921.67
  6. Step 6: Final answer
    x = 83,656.53

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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.