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Finding the Fourth Proportional to 121,878.54, 182,292.93 and 108,464.94

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Solution

The fourth proportional to 121,878.54, 182,292.93 and 108,464.94 is: 162,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,878.54 : 182,292.93 = 108,464.94 : x
  2. Step 2: Convert to fraction form
    121,878.54/182,292.93 = 108,464.94/x
  3. Step 3: Cross multiply
    121,878.54x = 182,292.93 × 108,464.94
  4. Step 4: Simplify right side
    121,878.54x = 19,772,391,714.87
  5. Step 5: Solve for x
    x = 19,772,391,714.87/121,878.54
  6. Step 6: Final answer
    x = 162,230.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.