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Finding the Fourth Proportional to 61,203.88, 91,792.86 and 19,641.16

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Solution

The fourth proportional to 61,203.88, 91,792.86 and 19,641.16 is: 29,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.88 : 91,792.86 = 19,641.16 : x
  2. Step 2: Convert to fraction form
    61,203.88/91,792.86 = 19,641.16/x
  3. Step 3: Cross multiply
    61,203.88x = 91,792.86 × 19,641.16
  4. Step 4: Simplify right side
    61,203.88x = 1,802,918,250.12
  5. Step 5: Solve for x
    x = 1,802,918,250.12/61,203.88
  6. Step 6: Final answer
    x = 29,457.58

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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.