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Finding the Fourth Proportional to 330,316.20, 495,474.30 and 93,655.80

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Solution

The fourth proportional to 330,316.20, 495,474.30 and 93,655.80 is: 140,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,316.20 : 495,474.30 = 93,655.80 : x
  2. Step 2: Convert to fraction form
    330,316.20/495,474.30 = 93,655.80/x
  3. Step 3: Cross multiply
    330,316.20x = 495,474.30 × 93,655.80
  4. Step 4: Simplify right side
    330,316.20x = 46,404,041,945.94
  5. Step 5: Solve for x
    x = 46,404,041,945.94/330,316.20
  6. Step 6: Final answer
    x = 140,483.70

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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.