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Finding the Fourth Proportional to 303,043.78, 454,567.95 and 134,518.80

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Solution

The fourth proportional to 303,043.78, 454,567.95 and 134,518.80 is: 201,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,043.78 : 454,567.95 = 134,518.80 : x
  2. Step 2: Convert to fraction form
    303,043.78/454,567.95 = 134,518.80/x
  3. Step 3: Cross multiply
    303,043.78x = 454,567.95 × 134,518.80
  4. Step 4: Simplify right side
    303,043.78x = 61,147,935,578.62
  5. Step 5: Solve for x
    x = 61,147,935,578.62/303,043.78
  6. Step 6: Final answer
    x = 201,779.21

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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.