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Finding the Fourth Proportional to 330,441.30, 495,661.03 and 93,784.21

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Solution

The fourth proportional to 330,441.30, 495,661.03 and 93,784.21 is: 140,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,441.30 : 495,661.03 = 93,784.21 : x
  2. Step 2: Convert to fraction form
    330,441.30/495,661.03 = 93,784.21/x
  3. Step 3: Cross multiply
    330,441.30x = 495,661.03 × 93,784.21
  4. Step 4: Simplify right side
    330,441.30x = 46,485,178,126.34
  5. Step 5: Solve for x
    x = 46,485,178,126.34/330,441.30
  6. Step 6: Final answer
    x = 140,676.05

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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.