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Finding the Fourth Proportional to 69,457.97, 104,187.48 and 19,543.12

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Solution

The fourth proportional to 69,457.97, 104,187.48 and 19,543.12 is: 29,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,457.97 : 104,187.48 = 19,543.12 : x
  2. Step 2: Convert to fraction form
    69,457.97/104,187.48 = 19,543.12/x
  3. Step 3: Cross multiply
    69,457.97x = 104,187.48 × 19,543.12
  4. Step 4: Simplify right side
    69,457.97x = 2,036,148,090.38
  5. Step 5: Solve for x
    x = 2,036,148,090.38/69,457.97
  6. Step 6: Final answer
    x = 29,314.82

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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.