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Finding the Fourth Proportional to 248,644.81, 373,077.47 and 130,288.01

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Solution

The fourth proportional to 248,644.81, 373,077.47 and 130,288.01 is: 195,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,644.81 : 373,077.47 = 130,288.01 : x
  2. Step 2: Convert to fraction form
    248,644.81/373,077.47 = 130,288.01/x
  3. Step 3: Cross multiply
    248,644.81x = 373,077.47 × 130,288.01
  4. Step 4: Simplify right side
    248,644.81x = 48,607,521,142.13
  5. Step 5: Solve for x
    x = 48,607,521,142.13/248,644.81
  6. Step 6: Final answer
    x = 195,489.79

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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.