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Finding the Fourth Proportional to 124,850, 172,293.06 and 68,261.84

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Solution

The fourth proportional to 124,850, 172,293.06 and 68,261.84 is: 94,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,850 : 172,293.06 = 68,261.84 : x
  2. Step 2: Convert to fraction form
    124,850/172,293.06 = 68,261.84/x
  3. Step 3: Cross multiply
    124,850x = 172,293.06 × 68,261.84
  4. Step 4: Simplify right side
    124,850x = 11,761,041,294.83
  5. Step 5: Solve for x
    x = 11,761,041,294.83/124,850
  6. Step 6: Final answer
    x = 94,201.37

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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.