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Finding the Fourth Proportional to 339,690.83, 468,779.16 and 186,735.46

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Solution

The fourth proportional to 339,690.83, 468,779.16 and 186,735.46 is: 257,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,690.83 : 468,779.16 = 186,735.46 : x
  2. Step 2: Convert to fraction form
    339,690.83/468,779.16 = 186,735.46/x
  3. Step 3: Cross multiply
    339,690.83x = 468,779.16 × 186,735.46
  4. Step 4: Simplify right side
    339,690.83x = 87,537,689,737.12
  5. Step 5: Solve for x
    x = 87,537,689,737.12/339,690.83
  6. Step 6: Final answer
    x = 257,698.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.