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Finding the Fourth Proportional to 125,104.46, 172,643.83 and 67,743.83

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Solution

The fourth proportional to 125,104.46, 172,643.83 and 67,743.83 is: 93,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,104.46 : 172,643.83 = 67,743.83 : x
  2. Step 2: Convert to fraction form
    125,104.46/172,643.83 = 67,743.83/x
  3. Step 3: Cross multiply
    125,104.46x = 172,643.83 × 67,743.83
  4. Step 4: Simplify right side
    125,104.46x = 11,695,554,532.32
  5. Step 5: Solve for x
    x = 11,695,554,532.32/125,104.46
  6. Step 6: Final answer
    x = 93,486.32

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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.