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Finding the Fourth Proportional to 336,907.41, 505,433.76 and 97,019.70

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Solution

The fourth proportional to 336,907.41, 505,433.76 and 97,019.70 is: 145,550.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,907.41 : 505,433.76 = 97,019.70 : x
  2. Step 2: Convert to fraction form
    336,907.41/505,433.76 = 97,019.70/x
  3. Step 3: Cross multiply
    336,907.41x = 505,433.76 × 97,019.70
  4. Step 4: Simplify right side
    336,907.41x = 49,037,031,765.07
  5. Step 5: Solve for x
    x = 49,037,031,765.07/336,907.41
  6. Step 6: Final answer
    x = 145,550.47

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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.