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Finding the Fourth Proportional to 172,912.63, 238,619.43 and 93,424.63

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Solution

The fourth proportional to 172,912.63, 238,619.43 and 93,424.63 is: 128,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,912.63 : 238,619.43 = 93,424.63 : x
  2. Step 2: Convert to fraction form
    172,912.63/238,619.43 = 93,424.63/x
  3. Step 3: Cross multiply
    172,912.63x = 238,619.43 × 93,424.63
  4. Step 4: Simplify right side
    172,912.63x = 22,292,930,298.34
  5. Step 5: Solve for x
    x = 22,292,930,298.34/172,912.63
  6. Step 6: Final answer
    x = 128,925.98

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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.