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Finding the Fourth Proportional to 354,447.54, 531,511.40 and 101,670.68

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Solution

The fourth proportional to 354,447.54, 531,511.40 and 101,670.68 is: 152,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,447.54 : 531,511.40 = 101,670.68 : x
  2. Step 2: Convert to fraction form
    354,447.54/531,511.40 = 101,670.68/x
  3. Step 3: Cross multiply
    354,447.54x = 531,511.40 × 101,670.68
  4. Step 4: Simplify right side
    354,447.54x = 54,039,122,299.84
  5. Step 5: Solve for x
    x = 54,039,122,299.84/354,447.54
  6. Step 6: Final answer
    x = 152,460.14

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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.