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Finding the Fourth Proportional to 453,113.15, 679,699.76 and 133,293.69

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Solution

The fourth proportional to 453,113.15, 679,699.76 and 133,293.69 is: 199,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,113.15 : 679,699.76 = 133,293.69 : x
  2. Step 2: Convert to fraction form
    453,113.15/679,699.76 = 133,293.69/x
  3. Step 3: Cross multiply
    453,113.15x = 679,699.76 × 133,293.69
  4. Step 4: Simplify right side
    453,113.15x = 90,599,688,436.05
  5. Step 5: Solve for x
    x = 90,599,688,436.05/453,113.15
  6. Step 6: Final answer
    x = 199,949.37

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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.