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Finding the Fourth Proportional to 328,437.12, 453,243.60 and 177,534

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Solution

The fourth proportional to 328,437.12, 453,243.60 and 177,534 is: 244,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,437.12 : 453,243.60 = 177,534 : x
  2. Step 2: Convert to fraction form
    328,437.12/453,243.60 = 177,534/x
  3. Step 3: Cross multiply
    328,437.12x = 453,243.60 × 177,534
  4. Step 4: Simplify right side
    328,437.12x = 80,466,149,282.40
  5. Step 5: Solve for x
    x = 80,466,149,282.40/328,437.12
  6. Step 6: Final answer
    x = 244,997.12

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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.