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Finding the Fourth Proportional to 125,975.70, 188,416.80 and 112,744.35

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Solution

The fourth proportional to 125,975.70, 188,416.80 and 112,744.35 is: 168,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,975.70 : 188,416.80 = 112,744.35 : x
  2. Step 2: Convert to fraction form
    125,975.70/188,416.80 = 112,744.35/x
  3. Step 3: Cross multiply
    125,975.70x = 188,416.80 × 112,744.35
  4. Step 4: Simplify right side
    125,975.70x = 21,242,929,645.08
  5. Step 5: Solve for x
    x = 21,242,929,645.08/125,975.70
  6. Step 6: Final answer
    x = 168,627.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.