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Finding the Fourth Proportional to 458,273.64, 687,246.42 and 158,673.80

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Solution

The fourth proportional to 458,273.64, 687,246.42 and 158,673.80 is: 237,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,273.64 : 687,246.42 = 158,673.80 : x
  2. Step 2: Convert to fraction form
    458,273.64/687,246.42 = 158,673.80/x
  3. Step 3: Cross multiply
    458,273.64x = 687,246.42 × 158,673.80
  4. Step 4: Simplify right side
    458,273.64x = 109,048,000,997.80
  5. Step 5: Solve for x
    x = 109,048,000,997.80/458,273.64
  6. Step 6: Final answer
    x = 237,953.90

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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.