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Finding the Fourth Proportional to 101,874.76, 151,761.77 and 98,779.48

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Solution

The fourth proportional to 101,874.76, 151,761.77 and 98,779.48 is: 147,150.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,874.76 : 151,761.77 = 98,779.48 : x
  2. Step 2: Convert to fraction form
    101,874.76/151,761.77 = 98,779.48/x
  3. Step 3: Cross multiply
    101,874.76x = 151,761.77 × 98,779.48
  4. Step 4: Simplify right side
    101,874.76x = 14,990,948,724.48
  5. Step 5: Solve for x
    x = 14,990,948,724.48/101,874.76
  6. Step 6: Final answer
    x = 147,150.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.