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Finding the Fourth Proportional to 116,376.65, 160,599.96 and 66,075.65

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Solution

The fourth proportional to 116,376.65, 160,599.96 and 66,075.65 is: 91,184.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,376.65 : 160,599.96 = 66,075.65 : x
  2. Step 2: Convert to fraction form
    116,376.65/160,599.96 = 66,075.65/x
  3. Step 3: Cross multiply
    116,376.65x = 160,599.96 × 66,075.65
  4. Step 4: Simplify right side
    116,376.65x = 10,611,745,943.97
  5. Step 5: Solve for x
    x = 10,611,745,943.97/116,376.65
  6. Step 6: Final answer
    x = 91,184.50

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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.