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Finding the Fourth Proportional to 172,916.64, 238,616.64 and 97,464.96

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Solution

The fourth proportional to 172,916.64, 238,616.64 and 97,464.96 is: 134,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,916.64 : 238,616.64 = 97,464.96 : x
  2. Step 2: Convert to fraction form
    172,916.64/238,616.64 = 97,464.96/x
  3. Step 3: Cross multiply
    172,916.64x = 238,616.64 × 97,464.96
  4. Step 4: Simplify right side
    172,916.64x = 23,256,761,272.93
  5. Step 5: Solve for x
    x = 23,256,761,272.93/172,916.64
  6. Step 6: Final answer
    x = 134,496.95

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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.