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Finding the Fourth Proportional to 172,930.95, 238,575.92 and 104,922.95

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Solution

The fourth proportional to 172,930.95, 238,575.92 and 104,922.95 is: 144,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,930.95 : 238,575.92 = 104,922.95 : x
  2. Step 2: Convert to fraction form
    172,930.95/238,575.92 = 104,922.95/x
  3. Step 3: Cross multiply
    172,930.95x = 238,575.92 × 104,922.95
  4. Step 4: Simplify right side
    172,930.95x = 25,032,087,607.87
  5. Step 5: Solve for x
    x = 25,032,087,607.87/172,930.95
  6. Step 6: Final answer
    x = 144,751.92

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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.