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Finding the Fourth Proportional to 77,473, 106,925.86 and 43,958.44

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Solution

The fourth proportional to 77,473, 106,925.86 and 43,958.44 is: 60,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,473 : 106,925.86 = 43,958.44 : x
  2. Step 2: Convert to fraction form
    77,473/106,925.86 = 43,958.44/x
  3. Step 3: Cross multiply
    77,473x = 106,925.86 × 43,958.44
  4. Step 4: Simplify right side
    77,473x = 4,700,294,001.26
  5. Step 5: Solve for x
    x = 4,700,294,001.26/77,473
  6. Step 6: Final answer
    x = 60,670.09

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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.