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Finding the Fourth Proportional to 295,721.40, 443,873.70 and 146,130.60

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Solution

The fourth proportional to 295,721.40, 443,873.70 and 146,130.60 is: 219,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,721.40 : 443,873.70 = 146,130.60 : x
  2. Step 2: Convert to fraction form
    295,721.40/443,873.70 = 146,130.60/x
  3. Step 3: Cross multiply
    295,721.40x = 443,873.70 × 146,130.60
  4. Step 4: Simplify right side
    295,721.40x = 64,863,530,105.22
  5. Step 5: Solve for x
    x = 64,863,530,105.22/295,721.40
  6. Step 6: Final answer
    x = 219,339.99

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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.