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Finding the Fourth Proportional to 179,915.60, 269,873.40 and 113,430.80

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Solution

The fourth proportional to 179,915.60, 269,873.40 and 113,430.80 is: 170,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,915.60 : 269,873.40 = 113,430.80 : x
  2. Step 2: Convert to fraction form
    179,915.60/269,873.40 = 113,430.80/x
  3. Step 3: Cross multiply
    179,915.60x = 269,873.40 × 113,430.80
  4. Step 4: Simplify right side
    179,915.60x = 30,611,955,660.72
  5. Step 5: Solve for x
    x = 30,611,955,660.72/179,915.60
  6. Step 6: Final answer
    x = 170,146.20

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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.