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Finding the Fourth Proportional to 453,363.39, 680,020.47 and 137,795.69

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Solution

The fourth proportional to 453,363.39, 680,020.47 and 137,795.69 is: 206,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,363.39 : 680,020.47 = 137,795.69 : x
  2. Step 2: Convert to fraction form
    453,363.39/680,020.47 = 137,795.69/x
  3. Step 3: Cross multiply
    453,363.39x = 680,020.47 × 137,795.69
  4. Step 4: Simplify right side
    453,363.39x = 93,703,886,477.67
  5. Step 5: Solve for x
    x = 93,703,886,477.67/453,363.39
  6. Step 6: Final answer
    x = 206,686.05

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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.