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Finding the Fourth Proportional to 125,051.84, 172,573.52 and 68,468.48

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Solution

The fourth proportional to 125,051.84, 172,573.52 and 68,468.48 is: 94,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,051.84 : 172,573.52 = 68,468.48 : x
  2. Step 2: Convert to fraction form
    125,051.84/172,573.52 = 68,468.48/x
  3. Step 3: Cross multiply
    125,051.84x = 172,573.52 × 68,468.48
  4. Step 4: Simplify right side
    125,051.84x = 11,815,846,602.65
  5. Step 5: Solve for x
    x = 11,815,846,602.65/125,051.84
  6. Step 6: Final answer
    x = 94,487.59

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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.