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Finding the Fourth Proportional to 219,701.70, 329,606.55 and 61,928.10

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Solution

The fourth proportional to 219,701.70, 329,606.55 and 61,928.10 is: 92,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,701.70 : 329,606.55 = 61,928.10 : x
  2. Step 2: Convert to fraction form
    219,701.70/329,606.55 = 61,928.10/x
  3. Step 3: Cross multiply
    219,701.70x = 329,606.55 × 61,928.10
  4. Step 4: Simplify right side
    219,701.70x = 20,411,907,389.06
  5. Step 5: Solve for x
    x = 20,411,907,389.06/219,701.70
  6. Step 6: Final answer
    x = 92,907.37

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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.