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Finding the Fourth Proportional to 328,079.21, 452,749.31 and 177,176.21

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Solution

The fourth proportional to 328,079.21, 452,749.31 and 177,176.21 is: 244,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,079.21 : 452,749.31 = 177,176.21 : x
  2. Step 2: Convert to fraction form
    328,079.21/452,749.31 = 177,176.21/x
  3. Step 3: Cross multiply
    328,079.21x = 452,749.31 × 177,176.21
  4. Step 4: Simplify right side
    328,079.21x = 80,216,406,825.92
  5. Step 5: Solve for x
    x = 80,216,406,825.92/328,079.21
  6. Step 6: Final answer
    x = 244,503.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.