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Finding the Fourth Proportional to 160,935.84, 241,347.60 and 66,138.84

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Solution

The fourth proportional to 160,935.84, 241,347.60 and 66,138.84 is: 99,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,935.84 : 241,347.60 = 66,138.84 : x
  2. Step 2: Convert to fraction form
    160,935.84/241,347.60 = 66,138.84/x
  3. Step 3: Cross multiply
    160,935.84x = 241,347.60 × 66,138.84
  4. Step 4: Simplify right side
    160,935.84x = 15,962,450,300.78
  5. Step 5: Solve for x
    x = 15,962,450,300.78/160,935.84
  6. Step 6: Final answer
    x = 99,185.18

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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.