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Finding the Fourth Proportional to 373,018.52, 559,615.20 and 148,391.72

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Solution

The fourth proportional to 373,018.52, 559,615.20 and 148,391.72 is: 222,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,018.52 : 559,615.20 = 148,391.72 : x
  2. Step 2: Convert to fraction form
    373,018.52/559,615.20 = 148,391.72/x
  3. Step 3: Cross multiply
    373,018.52x = 559,615.20 × 148,391.72
  4. Step 4: Simplify right side
    373,018.52x = 83,042,262,066.14
  5. Step 5: Solve for x
    x = 83,042,262,066.14/373,018.52
  6. Step 6: Final answer
    x = 222,622.36

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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.