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Finding the Fourth Proportional to 124,847.94, 172,276.64 and 73,862.58

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Solution

The fourth proportional to 124,847.94, 172,276.64 and 73,862.58 is: 101,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,847.94 : 172,276.64 = 73,862.58 : x
  2. Step 2: Convert to fraction form
    124,847.94/172,276.64 = 73,862.58/x
  3. Step 3: Cross multiply
    124,847.94x = 172,276.64 × 73,862.58
  4. Step 4: Simplify right side
    124,847.94x = 12,724,797,104.13
  5. Step 5: Solve for x
    x = 12,724,797,104.13/124,847.94
  6. Step 6: Final answer
    x = 101,922.36

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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.