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Finding the Fourth Proportional to 186,602.20, 279,968.10 and 81,496.60

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Solution

The fourth proportional to 186,602.20, 279,968.10 and 81,496.60 is: 122,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,602.20 : 279,968.10 = 81,496.60 : x
  2. Step 2: Convert to fraction form
    186,602.20/279,968.10 = 81,496.60/x
  3. Step 3: Cross multiply
    186,602.20x = 279,968.10 × 81,496.60
  4. Step 4: Simplify right side
    186,602.20x = 22,816,448,258.46
  5. Step 5: Solve for x
    x = 22,816,448,258.46/186,602.20
  6. Step 6: Final answer
    x = 122,273.20

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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.