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Finding the Fourth Proportional to 186,800.30, 280,200.45 and 164,638.70

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Solution

The fourth proportional to 186,800.30, 280,200.45 and 164,638.70 is: 246,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,800.30 : 280,200.45 = 164,638.70 : x
  2. Step 2: Convert to fraction form
    186,800.30/280,200.45 = 164,638.70/x
  3. Step 3: Cross multiply
    186,800.30x = 280,200.45 × 164,638.70
  4. Step 4: Simplify right side
    186,800.30x = 46,131,837,827.42
  5. Step 5: Solve for x
    x = 46,131,837,827.42/186,800.30
  6. Step 6: Final answer
    x = 246,958.05

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1.5x scale

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.