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Finding the Fourth Proportional to 76,634.84, 114,802.79 and 43,253.93

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Solution

The fourth proportional to 76,634.84, 114,802.79 and 43,253.93 is: 64,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,634.84 : 114,802.79 = 43,253.93 : x
  2. Step 2: Convert to fraction form
    76,634.84/114,802.79 = 43,253.93/x
  3. Step 3: Cross multiply
    76,634.84x = 114,802.79 × 43,253.93
  4. Step 4: Simplify right side
    76,634.84x = 4,965,671,052.18
  5. Step 5: Solve for x
    x = 4,965,671,052.18/76,634.84
  6. Step 6: Final answer
    x = 64,796.53

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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.