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Finding the Fourth Proportional to 125,056.58, 172,577.89 and 67,695.62

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Solution

The fourth proportional to 125,056.58, 172,577.89 and 67,695.62 is: 93,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,056.58 : 172,577.89 = 67,695.62 : x
  2. Step 2: Convert to fraction form
    125,056.58/172,577.89 = 67,695.62/x
  3. Step 3: Cross multiply
    125,056.58x = 172,577.89 × 67,695.62
  4. Step 4: Simplify right side
    125,056.58x = 11,682,766,483.57
  5. Step 5: Solve for x
    x = 11,682,766,483.57/125,056.58
  6. Step 6: Final answer
    x = 93,419.85

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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.