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Finding the Fourth Proportional to 69,075.91, 103,476.69 and 53,225.95

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Solution

The fourth proportional to 69,075.91, 103,476.69 and 53,225.95 is: 79,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,075.91 : 103,476.69 = 53,225.95 : x
  2. Step 2: Convert to fraction form
    69,075.91/103,476.69 = 53,225.95/x
  3. Step 3: Cross multiply
    69,075.91x = 103,476.69 × 53,225.95
  4. Step 4: Simplify right side
    69,075.91x = 5,507,645,128.11
  5. Step 5: Solve for x
    x = 5,507,645,128.11/69,075.91
  6. Step 6: Final answer
    x = 79,733.23

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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.