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Finding the Fourth Proportional to 147,466.51, 220,691.49 and 90,502.58

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Solution

The fourth proportional to 147,466.51, 220,691.49 and 90,502.58 is: 135,441.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,466.51 : 220,691.49 = 90,502.58 : x
  2. Step 2: Convert to fraction form
    147,466.51/220,691.49 = 90,502.58/x
  3. Step 3: Cross multiply
    147,466.51x = 220,691.49 × 90,502.58
  4. Step 4: Simplify right side
    147,466.51x = 19,973,149,441.39
  5. Step 5: Solve for x
    x = 19,973,149,441.39/147,466.51
  6. Step 6: Final answer
    x = 135,441.94

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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.