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Finding the Fourth Proportional to 98,741.61, 148,043.30 and 36,395.37

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Solution

The fourth proportional to 98,741.61, 148,043.30 and 36,395.37 is: 54,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,741.61 : 148,043.30 = 36,395.37 : x
  2. Step 2: Convert to fraction form
    98,741.61/148,043.30 = 36,395.37/x
  3. Step 3: Cross multiply
    98,741.61x = 148,043.30 × 36,395.37
  4. Step 4: Simplify right side
    98,741.61x = 5,388,090,497.54
  5. Step 5: Solve for x
    x = 5,388,090,497.54/98,741.61
  6. Step 6: Final answer
    x = 54,567.58

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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.