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Finding the Fourth Proportional to 328,571.06, 453,428.55 and 177,668.06

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Solution

The fourth proportional to 328,571.06, 453,428.55 and 177,668.06 is: 245,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,571.06 : 453,428.55 = 177,668.06 : x
  2. Step 2: Convert to fraction form
    328,571.06/453,428.55 = 177,668.06/x
  3. Step 3: Cross multiply
    328,571.06x = 453,428.55 × 177,668.06
  4. Step 4: Simplify right side
    328,571.06x = 80,559,768,559.97
  5. Step 5: Solve for x
    x = 80,559,768,559.97/328,571.06
  6. Step 6: Final answer
    x = 245,182.18

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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.