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Finding the Fourth Proportional to 58,790.19, 81,129.36 and 33,296.19

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Solution

The fourth proportional to 58,790.19, 81,129.36 and 33,296.19 is: 45,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,790.19 : 81,129.36 = 33,296.19 : x
  2. Step 2: Convert to fraction form
    58,790.19/81,129.36 = 33,296.19/x
  3. Step 3: Cross multiply
    58,790.19x = 81,129.36 × 33,296.19
  4. Step 4: Simplify right side
    58,790.19x = 2,701,298,585.14
  5. Step 5: Solve for x
    x = 2,701,298,585.14/58,790.19
  6. Step 6: Final answer
    x = 45,948.12

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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.