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Finding the Fourth Proportional to 172,798.36, 238,460.70 and 97,371.16

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Solution

The fourth proportional to 172,798.36, 238,460.70 and 97,371.16 is: 134,371.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,798.36 : 238,460.70 = 97,371.16 : x
  2. Step 2: Convert to fraction form
    172,798.36/238,460.70 = 97,371.16/x
  3. Step 3: Cross multiply
    172,798.36x = 238,460.70 × 97,371.16
  4. Step 4: Simplify right side
    172,798.36x = 23,219,194,973.41
  5. Step 5: Solve for x
    x = 23,219,194,973.41/172,798.36
  6. Step 6: Final answer
    x = 134,371.62

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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.