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Finding the Fourth Proportional to 372,630.88, 558,955.51 and 135,973.49

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Solution

The fourth proportional to 372,630.88, 558,955.51 and 135,973.49 is: 203,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,630.88 : 558,955.51 = 135,973.49 : x
  2. Step 2: Convert to fraction form
    372,630.88/558,955.51 = 135,973.49/x
  3. Step 3: Cross multiply
    372,630.88x = 558,955.51 × 135,973.49
  4. Step 4: Simplify right side
    372,630.88x = 76,003,128,654.65
  5. Step 5: Solve for x
    x = 76,003,128,654.65/372,630.88
  6. Step 6: Final answer
    x = 203,963.58

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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.