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Finding the Fourth Proportional to 219,866.40, 329,799.60 and 149,882.40

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Solution

The fourth proportional to 219,866.40, 329,799.60 and 149,882.40 is: 224,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,866.40 : 329,799.60 = 149,882.40 : x
  2. Step 2: Convert to fraction form
    219,866.40/329,799.60 = 149,882.40/x
  3. Step 3: Cross multiply
    219,866.40x = 329,799.60 × 149,882.40
  4. Step 4: Simplify right side
    219,866.40x = 49,431,155,567.04
  5. Step 5: Solve for x
    x = 49,431,155,567.04/219,866.40
  6. Step 6: Final answer
    x = 224,823.60

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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.