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Finding the Fourth Proportional to 55,653.48, 83,329.56 and 40,749.48

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Solution

The fourth proportional to 55,653.48, 83,329.56 and 40,749.48 is: 61,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.48 : 83,329.56 = 40,749.48 : x
  2. Step 2: Convert to fraction form
    55,653.48/83,329.56 = 40,749.48/x
  3. Step 3: Cross multiply
    55,653.48x = 83,329.56 × 40,749.48
  4. Step 4: Simplify right side
    55,653.48x = 3,395,636,238.63
  5. Step 5: Solve for x
    x = 3,395,636,238.63/55,653.48
  6. Step 6: Final answer
    x = 61,013.91

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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.