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Finding the Fourth Proportional to 207,314.64, 286,090.74 and 116,670.60

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Solution

The fourth proportional to 207,314.64, 286,090.74 and 116,670.60 is: 161,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,314.64 : 286,090.74 = 116,670.60 : x
  2. Step 2: Convert to fraction form
    207,314.64/286,090.74 = 116,670.60/x
  3. Step 3: Cross multiply
    207,314.64x = 286,090.74 × 116,670.60
  4. Step 4: Simplify right side
    207,314.64x = 33,378,378,290.24
  5. Step 5: Solve for x
    x = 33,378,378,290.24/207,314.64
  6. Step 6: Final answer
    x = 161,003.48

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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.