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Finding the Fourth Proportional to 77,335.74, 106,719.75 and 43,801.98

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Solution

The fourth proportional to 77,335.74, 106,719.75 and 43,801.98 is: 60,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,335.74 : 106,719.75 = 43,801.98 : x
  2. Step 2: Convert to fraction form
    77,335.74/106,719.75 = 43,801.98/x
  3. Step 3: Cross multiply
    77,335.74x = 106,719.75 × 43,801.98
  4. Step 4: Simplify right side
    77,335.74x = 4,674,536,355.11
  5. Step 5: Solve for x
    x = 4,674,536,355.11/77,335.74
  6. Step 6: Final answer
    x = 60,444.71

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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.