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Finding the Fourth Proportional to 328,484.22, 492,683.76 and 103,867.26

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Solution

The fourth proportional to 328,484.22, 492,683.76 and 103,867.26 is: 155,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,484.22 : 492,683.76 = 103,867.26 : x
  2. Step 2: Convert to fraction form
    328,484.22/492,683.76 = 103,867.26/x
  3. Step 3: Cross multiply
    328,484.22x = 492,683.76 × 103,867.26
  4. Step 4: Simplify right side
    328,484.22x = 51,173,712,197.70
  5. Step 5: Solve for x
    x = 51,173,712,197.70/328,484.22
  6. Step 6: Final answer
    x = 155,787.43

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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.