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Finding the Fourth Proportional to 453,014.48, 679,525.81 and 137,471.38

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Solution

The fourth proportional to 453,014.48, 679,525.81 and 137,471.38 is: 206,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,014.48 : 679,525.81 = 137,471.38 : x
  2. Step 2: Convert to fraction form
    453,014.48/679,525.81 = 137,471.38/x
  3. Step 3: Cross multiply
    453,014.48x = 679,525.81 × 137,471.38
  4. Step 4: Simplify right side
    453,014.48x = 93,415,348,803.82
  5. Step 5: Solve for x
    x = 93,415,348,803.82/453,014.48
  6. Step 6: Final answer
    x = 206,208.31

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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.