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Finding the Fourth Proportional to 172,815.63, 238,485.57 and 93,327.63

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Solution

The fourth proportional to 172,815.63, 238,485.57 and 93,327.63 is: 128,792.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,815.63 : 238,485.57 = 93,327.63 : x
  2. Step 2: Convert to fraction form
    172,815.63/238,485.57 = 93,327.63/x
  3. Step 3: Cross multiply
    172,815.63x = 238,485.57 × 93,327.63
  4. Step 4: Simplify right side
    172,815.63x = 22,257,292,078.19
  5. Step 5: Solve for x
    x = 22,257,292,078.19/172,815.63
  6. Step 6: Final answer
    x = 128,792.13

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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.