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Finding the Fourth Proportional to 125,356.01, 172,994.00 and 68,767.38

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Solution

The fourth proportional to 125,356.01, 172,994.00 and 68,767.38 is: 94,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,356.01 : 172,994.00 = 68,767.38 : x
  2. Step 2: Convert to fraction form
    125,356.01/172,994.00 = 68,767.38/x
  3. Step 3: Cross multiply
    125,356.01x = 172,994.00 × 68,767.38
  4. Step 4: Simplify right side
    125,356.01x = 11,896,343,791.88
  5. Step 5: Solve for x
    x = 11,896,343,791.88/125,356.01
  6. Step 6: Final answer
    x = 94,900.47

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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.