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Finding the Fourth Proportional to 169,912.80, 254,869.20 and 113,925.60

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Solution

The fourth proportional to 169,912.80, 254,869.20 and 113,925.60 is: 170,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.80 : 254,869.20 = 113,925.60 : x
  2. Step 2: Convert to fraction form
    169,912.80/254,869.20 = 113,925.60/x
  3. Step 3: Cross multiply
    169,912.80x = 254,869.20 × 113,925.60
  4. Step 4: Simplify right side
    169,912.80x = 29,036,126,531.52
  5. Step 5: Solve for x
    x = 29,036,126,531.52/169,912.80
  6. Step 6: Final answer
    x = 170,888.40

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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.