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Finding the Fourth Proportional to 248,628.30, 372,942.45 and 143,652.30

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Solution

The fourth proportional to 248,628.30, 372,942.45 and 143,652.30 is: 215,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,628.30 : 372,942.45 = 143,652.30 : x
  2. Step 2: Convert to fraction form
    248,628.30/372,942.45 = 143,652.30/x
  3. Step 3: Cross multiply
    248,628.30x = 372,942.45 × 143,652.30
  4. Step 4: Simplify right side
    248,628.30x = 53,574,040,710.14
  5. Step 5: Solve for x
    x = 53,574,040,710.14/248,628.30
  6. Step 6: Final answer
    x = 215,478.45

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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.