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Finding the Fourth Proportional to 94,008.63, 140,978.07 and 65,914.32

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Solution

The fourth proportional to 94,008.63, 140,978.07 and 65,914.32 is: 98,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,008.63 : 140,978.07 = 65,914.32 : x
  2. Step 2: Convert to fraction form
    94,008.63/140,978.07 = 65,914.32/x
  3. Step 3: Cross multiply
    94,008.63x = 140,978.07 × 65,914.32
  4. Step 4: Simplify right side
    94,008.63x = 9,292,473,618.96
  5. Step 5: Solve for x
    x = 9,292,473,618.96/94,008.63
  6. Step 6: Final answer
    x = 98,847.03

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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.