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Finding the Fourth Proportional to 168,048,258.40, 252,072,387.60 and 168,048,258.40

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Solution

The fourth proportional to 168,048,258.40, 252,072,387.60 and 168,048,258.40 is: 252,072,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,048,258.40 : 252,072,387.60 = 168,048,258.40 : x
  2. Step 2: Convert to fraction form
    168,048,258.40/252,072,387.60 = 168,048,258.40/x
  3. Step 3: Cross multiply
    168,048,258.40x = 252,072,387.60 × 168,048,258.40
  4. Step 4: Simplify right side
    168,048,258.40x = 42,360,325,726,909,760
  5. Step 5: Solve for x
    x = 42,360,325,726,909,760/168,048,258.40
  6. Step 6: Final answer
    x = 252,072,387.60

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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.