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Finding the Fourth Proportional to 303,348.10, 454,978.95 and 103,677.70

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Solution

The fourth proportional to 303,348.10, 454,978.95 and 103,677.70 is: 155,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,348.10 : 454,978.95 = 103,677.70 : x
  2. Step 2: Convert to fraction form
    303,348.10/454,978.95 = 103,677.70/x
  3. Step 3: Cross multiply
    303,348.10x = 454,978.95 × 103,677.70
  4. Step 4: Simplify right side
    303,348.10x = 47,171,171,084.42
  5. Step 5: Solve for x
    x = 47,171,171,084.42/303,348.10
  6. Step 6: Final answer
    x = 155,501.79

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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.