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Finding the Fourth Proportional to 219,915.60, 329,873.40 and 164,619.60

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Solution

The fourth proportional to 219,915.60, 329,873.40 and 164,619.60 is: 246,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,915.60 : 329,873.40 = 164,619.60 : x
  2. Step 2: Convert to fraction form
    219,915.60/329,873.40 = 164,619.60/x
  3. Step 3: Cross multiply
    219,915.60x = 329,873.40 × 164,619.60
  4. Step 4: Simplify right side
    219,915.60x = 54,303,627,158.64
  5. Step 5: Solve for x
    x = 54,303,627,158.64/219,915.60
  6. Step 6: Final answer
    x = 246,929.40

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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.