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Finding the Fourth Proportional to 169,622.80, 254,434.20 and 166,512.40

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Solution

The fourth proportional to 169,622.80, 254,434.20 and 166,512.40 is: 249,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,622.80 : 254,434.20 = 166,512.40 : x
  2. Step 2: Convert to fraction form
    169,622.80/254,434.20 = 166,512.40/x
  3. Step 3: Cross multiply
    169,622.80x = 254,434.20 × 166,512.40
  4. Step 4: Simplify right side
    169,622.80x = 42,366,449,284.08
  5. Step 5: Solve for x
    x = 42,366,449,284.08/169,622.80
  6. Step 6: Final answer
    x = 249,768.60

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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.