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Finding the Fourth Proportional to 69,918, 96,525.99 and 53,534.22

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Solution

The fourth proportional to 69,918, 96,525.99 and 53,534.22 is: 73,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,918 : 96,525.99 = 53,534.22 : x
  2. Step 2: Convert to fraction form
    69,918/96,525.99 = 53,534.22/x
  3. Step 3: Cross multiply
    69,918x = 96,525.99 × 53,534.22
  4. Step 4: Simplify right side
    69,918x = 5,167,443,584.38
  5. Step 5: Solve for x
    x = 5,167,443,584.38/69,918
  6. Step 6: Final answer
    x = 73,907.20

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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.