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Finding the Fourth Proportional to 165,861.20, 248,824.20 and 66,004.40

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Solution

The fourth proportional to 165,861.20, 248,824.20 and 66,004.40 is: 99,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,861.20 : 248,824.20 = 66,004.40 : x
  2. Step 2: Convert to fraction form
    165,861.20/248,824.20 = 66,004.40/x
  3. Step 3: Cross multiply
    165,861.20x = 248,824.20 × 66,004.40
  4. Step 4: Simplify right side
    165,861.20x = 16,423,492,026.48
  5. Step 5: Solve for x
    x = 16,423,492,026.48/165,861.20
  6. Step 6: Final answer
    x = 99,019.49

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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.