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Finding the Fourth Proportional to 328,428.55, 453,234.67 and 183,233.12

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Solution

The fourth proportional to 328,428.55, 453,234.67 and 183,233.12 is: 252,863.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,428.55 : 453,234.67 = 183,233.12 : x
  2. Step 2: Convert to fraction form
    328,428.55/453,234.67 = 183,233.12/x
  3. Step 3: Cross multiply
    328,428.55x = 453,234.67 × 183,233.12
  4. Step 4: Simplify right side
    328,428.55x = 83,047,599,952.01
  5. Step 5: Solve for x
    x = 83,047,599,952.01/328,428.55
  6. Step 6: Final answer
    x = 252,863.52

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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.