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Finding the Fourth Proportional to 219,379.79, 329,069.68 and 53,167.79

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Solution

The fourth proportional to 219,379.79, 329,069.68 and 53,167.79 is: 79,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,379.79 : 329,069.68 = 53,167.79 : x
  2. Step 2: Convert to fraction form
    219,379.79/329,069.68 = 53,167.79/x
  3. Step 3: Cross multiply
    219,379.79x = 329,069.68 × 53,167.79
  4. Step 4: Simplify right side
    219,379.79x = 17,495,905,863.34
  5. Step 5: Solve for x
    x = 17,495,905,863.34/219,379.79
  6. Step 6: Final answer
    x = 79,751.68

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1.5x scale

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.