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Finding the Fourth Proportional to 219,352.40, 329,028.60 and 61,607.60

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Solution

The fourth proportional to 219,352.40, 329,028.60 and 61,607.60 is: 92,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,352.40 : 329,028.60 = 61,607.60 : x
  2. Step 2: Convert to fraction form
    219,352.40/329,028.60 = 61,607.60/x
  3. Step 3: Cross multiply
    219,352.40x = 329,028.60 × 61,607.60
  4. Step 4: Simplify right side
    219,352.40x = 20,270,662,377.36
  5. Step 5: Solve for x
    x = 20,270,662,377.36/219,352.40
  6. Step 6: Final answer
    x = 92,411.40

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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.