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Finding the Fourth Proportional to 295,908.38, 443,928.34 and 138,050.72

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Solution

The fourth proportional to 295,908.38, 443,928.34 and 138,050.72 is: 207,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,908.38 : 443,928.34 = 138,050.72 : x
  2. Step 2: Convert to fraction form
    295,908.38/443,928.34 = 138,050.72/x
  3. Step 3: Cross multiply
    295,908.38x = 443,928.34 × 138,050.72
  4. Step 4: Simplify right side
    295,908.38x = 61,284,626,965.40
  5. Step 5: Solve for x
    x = 61,284,626,965.40/295,908.38
  6. Step 6: Final answer
    x = 207,106.76

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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.