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Finding the Fourth Proportional to 328,893.60, 493,038 and 118,480.08

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Solution

The fourth proportional to 328,893.60, 493,038 and 118,480.08 is: 177,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,893.60 : 493,038 = 118,480.08 : x
  2. Step 2: Convert to fraction form
    328,893.60/493,038 = 118,480.08/x
  3. Step 3: Cross multiply
    328,893.60x = 493,038 × 118,480.08
  4. Step 4: Simplify right side
    328,893.60x = 58,415,181,683.04
  5. Step 5: Solve for x
    x = 58,415,181,683.04/328,893.60
  6. Step 6: Final answer
    x = 177,611.18

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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.