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Finding the Fourth Proportional to 221,901.20, 332,851.80 and 186,779.60

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Solution

The fourth proportional to 221,901.20, 332,851.80 and 186,779.60 is: 280,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,901.20 : 332,851.80 = 186,779.60 : x
  2. Step 2: Convert to fraction form
    221,901.20/332,851.80 = 186,779.60/x
  3. Step 3: Cross multiply
    221,901.20x = 332,851.80 × 186,779.60
  4. Step 4: Simplify right side
    221,901.20x = 62,169,926,063.28
  5. Step 5: Solve for x
    x = 62,169,926,063.28/221,901.20
  6. Step 6: Final answer
    x = 280,169.40

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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.