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Finding the Fourth Proportional to 219,378.94, 329,068.41 and 53,166.94

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Solution

The fourth proportional to 219,378.94, 329,068.41 and 53,166.94 is: 79,750.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,378.94 : 329,068.41 = 53,166.94 : x
  2. Step 2: Convert to fraction form
    219,378.94/329,068.41 = 53,166.94/x
  3. Step 3: Cross multiply
    219,378.94x = 329,068.41 × 53,166.94
  4. Step 4: Simplify right side
    219,378.94x = 17,495,559,388.32
  5. Step 5: Solve for x
    x = 17,495,559,388.32/219,378.94
  6. Step 6: Final answer
    x = 79,750.41

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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.