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Finding the Fourth Proportional to 339,695.34, 509,544.84 and 103,038.26

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Solution

The fourth proportional to 339,695.34, 509,544.84 and 103,038.26 is: 154,557.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,695.34 : 509,544.84 = 103,038.26 : x
  2. Step 2: Convert to fraction form
    339,695.34/509,544.84 = 103,038.26/x
  3. Step 3: Cross multiply
    339,695.34x = 509,544.84 × 103,038.26
  4. Step 4: Simplify right side
    339,695.34x = 52,502,611,157.85
  5. Step 5: Solve for x
    x = 52,502,611,157.85/339,695.34
  6. Step 6: Final answer
    x = 154,557.94

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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.