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Finding the Fourth Proportional to 69,696.51, 104,486.40 and 48,574.59

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Solution

The fourth proportional to 69,696.51, 104,486.40 and 48,574.59 is: 72,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,696.51 : 104,486.40 = 48,574.59 : x
  2. Step 2: Convert to fraction form
    69,696.51/104,486.40 = 48,574.59/x
  3. Step 3: Cross multiply
    69,696.51x = 104,486.40 × 48,574.59
  4. Step 4: Simplify right side
    69,696.51x = 5,075,384,040.58
  5. Step 5: Solve for x
    x = 5,075,384,040.58/69,696.51
  6. Step 6: Final answer
    x = 72,821.21

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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.