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Finding the Fourth Proportional to 252,028.40, 378,042.60 and 168,047.60

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Solution

The fourth proportional to 252,028.40, 378,042.60 and 168,047.60 is: 252,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,028.40 : 378,042.60 = 168,047.60 : x
  2. Step 2: Convert to fraction form
    252,028.40/378,042.60 = 168,047.60/x
  3. Step 3: Cross multiply
    252,028.40x = 378,042.60 × 168,047.60
  4. Step 4: Simplify right side
    252,028.40x = 63,529,151,627.76
  5. Step 5: Solve for x
    x = 63,529,151,627.76/252,028.40
  6. Step 6: Final answer
    x = 252,071.40

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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.