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Finding the Fourth Proportional to 297,946.70, 446,930.85 and 87,605.90

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Solution

The fourth proportional to 297,946.70, 446,930.85 and 87,605.90 is: 131,412.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,946.70 : 446,930.85 = 87,605.90 : x
  2. Step 2: Convert to fraction form
    297,946.70/446,930.85 = 87,605.90/x
  3. Step 3: Cross multiply
    297,946.70x = 446,930.85 × 87,605.90
  4. Step 4: Simplify right side
    297,946.70x = 39,153,779,352.02
  5. Step 5: Solve for x
    x = 39,153,779,352.02/297,946.70
  6. Step 6: Final answer
    x = 131,412.03

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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.