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Finding the Fourth Proportional to 325,043.06, 487,377.08 and 100,343.39

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Solution

The fourth proportional to 325,043.06, 487,377.08 and 100,343.39 is: 150,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,043.06 : 487,377.08 = 100,343.39 : x
  2. Step 2: Convert to fraction form
    325,043.06/487,377.08 = 100,343.39/x
  3. Step 3: Cross multiply
    325,043.06x = 487,377.08 × 100,343.39
  4. Step 4: Simplify right side
    325,043.06x = 48,905,065,476.90
  5. Step 5: Solve for x
    x = 48,905,065,476.90/325,043.06
  6. Step 6: Final answer
    x = 150,457.19

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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.