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Finding the Fourth Proportional to 241,748.40, 362,779.90 and 91,989.92

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Solution

The fourth proportional to 241,748.40, 362,779.90 and 91,989.92 is: 138,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,748.40 : 362,779.90 = 91,989.92 : x
  2. Step 2: Convert to fraction form
    241,748.40/362,779.90 = 91,989.92/x
  3. Step 3: Cross multiply
    241,748.40x = 362,779.90 × 91,989.92
  4. Step 4: Simplify right side
    241,748.40x = 33,372,093,978.61
  5. Step 5: Solve for x
    x = 33,372,093,978.61/241,748.40
  6. Step 6: Final answer
    x = 138,044.74

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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.