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Finding the Fourth Proportional to 110,215.76, 151,884.45 and 74,343.42

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Solution

The fourth proportional to 110,215.76, 151,884.45 and 74,343.42 is: 102,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,215.76 : 151,884.45 = 74,343.42 : x
  2. Step 2: Convert to fraction form
    110,215.76/151,884.45 = 74,343.42/x
  3. Step 3: Cross multiply
    110,215.76x = 151,884.45 × 74,343.42
  4. Step 4: Simplify right side
    110,215.76x = 11,291,609,457.82
  5. Step 5: Solve for x
    x = 11,291,609,457.82/110,215.76
  6. Step 6: Final answer
    x = 102,450.05

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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.