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Finding the Fourth Proportional to 333,125.22, 499,615.46 and 105,438.54

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Solution

The fourth proportional to 333,125.22, 499,615.46 and 105,438.54 is: 158,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,125.22 : 499,615.46 = 105,438.54 : x
  2. Step 2: Convert to fraction form
    333,125.22/499,615.46 = 105,438.54/x
  3. Step 3: Cross multiply
    333,125.22x = 499,615.46 × 105,438.54
  4. Step 4: Simplify right side
    333,125.22x = 52,678,724,663.83
  5. Step 5: Solve for x
    x = 52,678,724,663.83/333,125.22
  6. Step 6: Final answer
    x = 158,134.90

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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.