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Finding the Fourth Proportional to 94,010.13, 140,980.32 and 65,915.82

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Solution

The fourth proportional to 94,010.13, 140,980.32 and 65,915.82 is: 98,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,010.13 : 140,980.32 = 65,915.82 : x
  2. Step 2: Convert to fraction form
    94,010.13/140,980.32 = 65,915.82/x
  3. Step 3: Cross multiply
    94,010.13x = 140,980.32 × 65,915.82
  4. Step 4: Simplify right side
    94,010.13x = 9,292,833,396.66
  5. Step 5: Solve for x
    x = 9,292,833,396.66/94,010.13
  6. Step 6: Final answer
    x = 98,849.28

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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.