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Finding the Fourth Proportional to 172,918.64, 238,619.40 and 97,466.96

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Solution

The fourth proportional to 172,918.64, 238,619.40 and 97,466.96 is: 134,499.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,918.64 : 238,619.40 = 97,466.96 : x
  2. Step 2: Convert to fraction form
    172,918.64/238,619.40 = 97,466.96/x
  3. Step 3: Cross multiply
    172,918.64x = 238,619.40 × 97,466.96
  4. Step 4: Simplify right side
    172,918.64x = 23,257,507,515.02
  5. Step 5: Solve for x
    x = 23,257,507,515.02/172,918.64
  6. Step 6: Final answer
    x = 134,499.71

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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.