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Finding the Fourth Proportional to 117,791.84, 162,551.20 and 64,076.16

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Solution

The fourth proportional to 117,791.84, 162,551.20 and 64,076.16 is: 88,424.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,791.84 : 162,551.20 = 64,076.16 : x
  2. Step 2: Convert to fraction form
    117,791.84/162,551.20 = 64,076.16/x
  3. Step 3: Cross multiply
    117,791.84x = 162,551.20 × 64,076.16
  4. Step 4: Simplify right side
    117,791.84x = 10,415,656,699.39
  5. Step 5: Solve for x
    x = 10,415,656,699.39/117,791.84
  6. Step 6: Final answer
    x = 88,424.26

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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.