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Finding the Fourth Proportional to 125,405.75, 173,057.58 and 70,957.35

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Solution

The fourth proportional to 125,405.75, 173,057.58 and 70,957.35 is: 97,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,405.75 : 173,057.58 = 70,957.35 : x
  2. Step 2: Convert to fraction form
    125,405.75/173,057.58 = 70,957.35/x
  3. Step 3: Cross multiply
    125,405.75x = 173,057.58 × 70,957.35
  4. Step 4: Simplify right side
    125,405.75x = 12,279,707,274.21
  5. Step 5: Solve for x
    x = 12,279,707,274.21/125,405.75
  6. Step 6: Final answer
    x = 97,919.81

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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.