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Finding the Fourth Proportional to 69,075.97, 103,613.95 and 45,696.94

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Solution

The fourth proportional to 69,075.97, 103,613.95 and 45,696.94 is: 68,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,075.97 : 103,613.95 = 45,696.94 : x
  2. Step 2: Convert to fraction form
    69,075.97/103,613.95 = 45,696.94/x
  3. Step 3: Cross multiply
    69,075.97x = 103,613.95 × 45,696.94
  4. Step 4: Simplify right side
    69,075.97x = 4,734,839,938.24
  5. Step 5: Solve for x
    x = 4,734,839,938.24/69,075.97
  6. Step 6: Final answer
    x = 68,545.40

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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.