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Finding the Fourth Proportional to 69,912, 96,451.20 and 46,051.20

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Solution

The fourth proportional to 69,912, 96,451.20 and 46,051.20 is: 63,532.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,912 : 96,451.20 = 46,051.20 : x
  2. Step 2: Convert to fraction form
    69,912/96,451.20 = 46,051.20/x
  3. Step 3: Cross multiply
    69,912x = 96,451.20 × 46,051.20
  4. Step 4: Simplify right side
    69,912x = 4,441,693,501.44
  5. Step 5: Solve for x
    x = 4,441,693,501.44/69,912
  6. Step 6: Final answer
    x = 63,532.63

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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.