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Finding the Fourth Proportional to 339,307.10, 508,751.67 and 114,646.31

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Solution

The fourth proportional to 339,307.10, 508,751.67 and 114,646.31 is: 171,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,307.10 : 508,751.67 = 114,646.31 : x
  2. Step 2: Convert to fraction form
    339,307.10/508,751.67 = 114,646.31/x
  3. Step 3: Cross multiply
    339,307.10x = 508,751.67 × 114,646.31
  4. Step 4: Simplify right side
    339,307.10x = 58,326,501,671.84
  5. Step 5: Solve for x
    x = 58,326,501,671.84/339,307.10
  6. Step 6: Final answer
    x = 171,898.85

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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.