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Finding the Fourth Proportional to 295,859.70, 443,546.55 and 127,509.30

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Solution

The fourth proportional to 295,859.70, 443,546.55 and 127,509.30 is: 191,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,859.70 : 443,546.55 = 127,509.30 : x
  2. Step 2: Convert to fraction form
    295,859.70/443,546.55 = 127,509.30/x
  3. Step 3: Cross multiply
    295,859.70x = 443,546.55 × 127,509.30
  4. Step 4: Simplify right side
    295,859.70x = 56,556,310,107.92
  5. Step 5: Solve for x
    x = 56,556,310,107.92/295,859.70
  6. Step 6: Final answer
    x = 191,159.22

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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.