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Finding the Fourth Proportional to 76,003.79, 113,978.35 and 26,070.94

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Solution

The fourth proportional to 76,003.79, 113,978.35 and 26,070.94 is: 39,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,003.79 : 113,978.35 = 26,070.94 : x
  2. Step 2: Convert to fraction form
    76,003.79/113,978.35 = 26,070.94/x
  3. Step 3: Cross multiply
    76,003.79x = 113,978.35 × 26,070.94
  4. Step 4: Simplify right side
    76,003.79x = 2,971,522,374.03
  5. Step 5: Solve for x
    x = 2,971,522,374.03/76,003.79
  6. Step 6: Final answer
    x = 39,097.03

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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.