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Finding the Fourth Proportional to 217,095.60, 325,643.40 and 146,236.80

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Solution

The fourth proportional to 217,095.60, 325,643.40 and 146,236.80 is: 219,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,095.60 : 325,643.40 = 146,236.80 : x
  2. Step 2: Convert to fraction form
    217,095.60/325,643.40 = 146,236.80/x
  3. Step 3: Cross multiply
    217,095.60x = 325,643.40 × 146,236.80
  4. Step 4: Simplify right side
    217,095.60x = 47,621,048,757.12
  5. Step 5: Solve for x
    x = 47,621,048,757.12/217,095.60
  6. Step 6: Final answer
    x = 219,355.20

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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.