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Finding the Fourth Proportional to 117,373.74, 161,972.88 and 67,069.50

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Solution

The fourth proportional to 117,373.74, 161,972.88 and 67,069.50 is: 92,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,373.74 : 161,972.88 = 67,069.50 : x
  2. Step 2: Convert to fraction form
    117,373.74/161,972.88 = 67,069.50/x
  3. Step 3: Cross multiply
    117,373.74x = 161,972.88 × 67,069.50
  4. Step 4: Simplify right side
    117,373.74x = 10,863,440,075.16
  5. Step 5: Solve for x
    x = 10,863,440,075.16/117,373.74
  6. Step 6: Final answer
    x = 92,554.26

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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.