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Finding the Fourth Proportional to 166,668.20, 249,783.60 and 66,746.60

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Solution

The fourth proportional to 166,668.20, 249,783.60 and 66,746.60 is: 100,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,668.20 : 249,783.60 = 66,746.60 : x
  2. Step 2: Convert to fraction form
    166,668.20/249,783.60 = 66,746.60/x
  3. Step 3: Cross multiply
    166,668.20x = 249,783.60 × 66,746.60
  4. Step 4: Simplify right side
    166,668.20x = 16,672,206,035.76
  5. Step 5: Solve for x
    x = 16,672,206,035.76/166,668.20
  6. Step 6: Final answer
    x = 100,032.32

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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.