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Finding the Fourth Proportional to 458,250.08, 687,211.07 and 158,650.20

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Solution

The fourth proportional to 458,250.08, 687,211.07 and 158,650.20 is: 237,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,250.08 : 687,211.07 = 158,650.20 : x
  2. Step 2: Convert to fraction form
    458,250.08/687,211.07 = 158,650.20/x
  3. Step 3: Cross multiply
    458,250.08x = 687,211.07 × 158,650.20
  4. Step 4: Simplify right side
    458,250.08x = 109,026,174,094.34
  5. Step 5: Solve for x
    x = 109,026,174,094.34/458,250.08
  6. Step 6: Final answer
    x = 237,918.51

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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.