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Finding the Fourth Proportional to 354,902.50, 532,357.40 and 105,584.50

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Solution

The fourth proportional to 354,902.50, 532,357.40 and 105,584.50 is: 158,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,902.50 : 532,357.40 = 105,584.50 : x
  2. Step 2: Convert to fraction form
    354,902.50/532,357.40 = 105,584.50/x
  3. Step 3: Cross multiply
    354,902.50x = 532,357.40 × 105,584.50
  4. Step 4: Simplify right side
    354,902.50x = 56,208,689,900.30
  5. Step 5: Solve for x
    x = 56,208,689,900.30/354,902.50
  6. Step 6: Final answer
    x = 158,377.84

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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.