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Finding the Fourth Proportional to 107,152.88, 147,879.36 and 59,415.60

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Solution

The fourth proportional to 107,152.88, 147,879.36 and 59,415.60 is: 81,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,152.88 : 147,879.36 = 59,415.60 : x
  2. Step 2: Convert to fraction form
    107,152.88/147,879.36 = 59,415.60/x
  3. Step 3: Cross multiply
    107,152.88x = 147,879.36 × 59,415.60
  4. Step 4: Simplify right side
    107,152.88x = 8,786,340,902.02
  5. Step 5: Solve for x
    x = 8,786,340,902.02/107,152.88
  6. Step 6: Final answer
    x = 81,998.18

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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.