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Finding the Fourth Proportional to 172,873.16, 238,580.71 and 104,907.43

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Solution

The fourth proportional to 172,873.16, 238,580.71 and 104,907.43 is: 144,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,873.16 : 238,580.71 = 104,907.43 : x
  2. Step 2: Convert to fraction form
    172,873.16/238,580.71 = 104,907.43/x
  3. Step 3: Cross multiply
    172,873.16x = 238,580.71 × 104,907.43
  4. Step 4: Simplify right side
    172,873.16x = 25,028,889,169.63
  5. Step 5: Solve for x
    x = 25,028,889,169.63/172,873.16
  6. Step 6: Final answer
    x = 144,781.81

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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.