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Finding the Fourth Proportional to 74,666.70, 112,046.94 and 30,293.64

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Solution

The fourth proportional to 74,666.70, 112,046.94 and 30,293.64 is: 45,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,666.70 : 112,046.94 = 30,293.64 : x
  2. Step 2: Convert to fraction form
    74,666.70/112,046.94 = 30,293.64/x
  3. Step 3: Cross multiply
    74,666.70x = 112,046.94 × 30,293.64
  4. Step 4: Simplify right side
    74,666.70x = 3,394,309,663.46
  5. Step 5: Solve for x
    x = 3,394,309,663.46/74,666.70
  6. Step 6: Final answer
    x = 45,459.48

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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.