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Finding the Fourth Proportional to 107,900.90, 148,899.81 and 59,504.87

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Solution

The fourth proportional to 107,900.90, 148,899.81 and 59,504.87 is: 82,114.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,900.90 : 148,899.81 = 59,504.87 : x
  2. Step 2: Convert to fraction form
    107,900.90/148,899.81 = 59,504.87/x
  3. Step 3: Cross multiply
    107,900.90x = 148,899.81 × 59,504.87
  4. Step 4: Simplify right side
    107,900.90x = 8,860,263,092.58
  5. Step 5: Solve for x
    x = 8,860,263,092.58/107,900.90
  6. Step 6: Final answer
    x = 82,114.82

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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.