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Finding the Fourth Proportional to 303,545.43, 418,947.54 and 181,045.67

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Solution

The fourth proportional to 303,545.43, 418,947.54 and 181,045.67 is: 249,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,545.43 : 418,947.54 = 181,045.67 : x
  2. Step 2: Convert to fraction form
    303,545.43/418,947.54 = 181,045.67/x
  3. Step 3: Cross multiply
    303,545.43x = 418,947.54 × 181,045.67
  4. Step 4: Simplify right side
    303,545.43x = 75,848,638,074.15
  5. Step 5: Solve for x
    x = 75,848,638,074.15/303,545.43
  6. Step 6: Final answer
    x = 249,875.74

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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.