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Finding the Fourth Proportional to 328,457.43, 492,467.34 and 118,068.03

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Solution

The fourth proportional to 328,457.43, 492,467.34 and 118,068.03 is: 177,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,457.43 : 492,467.34 = 118,068.03 : x
  2. Step 2: Convert to fraction form
    328,457.43/492,467.34 = 118,068.03/x
  3. Step 3: Cross multiply
    328,457.43x = 492,467.34 × 118,068.03
  4. Step 4: Simplify right side
    328,457.43x = 58,144,648,673.14
  5. Step 5: Solve for x
    x = 58,144,648,673.14/328,457.43
  6. Step 6: Final answer
    x = 177,023.39

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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.