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Finding the Fourth Proportional to 172,551.28, 238,111.68 and 97,104.64

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Solution

The fourth proportional to 172,551.28, 238,111.68 and 97,104.64 is: 133,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,551.28 : 238,111.68 = 97,104.64 : x
  2. Step 2: Convert to fraction form
    172,551.28/238,111.68 = 97,104.64/x
  3. Step 3: Cross multiply
    172,551.28x = 238,111.68 × 97,104.64
  4. Step 4: Simplify right side
    172,551.28x = 23,121,748,966.20
  5. Step 5: Solve for x
    x = 23,121,748,966.20/172,551.28
  6. Step 6: Final answer
    x = 133,999.29

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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.