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Finding the Fourth Proportional to 172,968.51, 238,696.15 and 97,516.47

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Solution

The fourth proportional to 172,968.51, 238,696.15 and 97,516.47 is: 134,572.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,968.51 : 238,696.15 = 97,516.47 : x
  2. Step 2: Convert to fraction form
    172,968.51/238,696.15 = 97,516.47/x
  3. Step 3: Cross multiply
    172,968.51x = 238,696.15 × 97,516.47
  4. Step 4: Simplify right side
    172,968.51x = 23,276,805,950.59
  5. Step 5: Solve for x
    x = 23,276,805,950.59/172,968.51
  6. Step 6: Final answer
    x = 134,572.51

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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.