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Finding the Fourth Proportional to 303,794.10, 455,581.80 and 153,984.60

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Solution

The fourth proportional to 303,794.10, 455,581.80 and 153,984.60 is: 230,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,794.10 : 455,581.80 = 153,984.60 : x
  2. Step 2: Convert to fraction form
    303,794.10/455,581.80 = 153,984.60/x
  3. Step 3: Cross multiply
    303,794.10x = 455,581.80 × 153,984.60
  4. Step 4: Simplify right side
    303,794.10x = 70,152,581,240.28
  5. Step 5: Solve for x
    x = 70,152,581,240.28/303,794.10
  6. Step 6: Final answer
    x = 230,921.47

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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.