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Finding the Fourth Proportional to 328,364.03, 492,573.99 and 103,664.35

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Solution

The fourth proportional to 328,364.03, 492,573.99 and 103,664.35 is: 155,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,364.03 : 492,573.99 = 103,664.35 : x
  2. Step 2: Convert to fraction form
    328,364.03/492,573.99 = 103,664.35/x
  3. Step 3: Cross multiply
    328,364.03x = 492,573.99 × 103,664.35
  4. Step 4: Simplify right side
    328,364.03x = 51,062,362,500.26
  5. Step 5: Solve for x
    x = 51,062,362,500.26/328,364.03
  6. Step 6: Final answer
    x = 155,505.35

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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.