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Finding the Fourth Proportional to 272,415.80, 375,932.66 and 151,568.66

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Solution

The fourth proportional to 272,415.80, 375,932.66 and 151,568.66 is: 209,164.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,415.80 : 375,932.66 = 151,568.66 : x
  2. Step 2: Convert to fraction form
    272,415.80/375,932.66 = 151,568.66/x
  3. Step 3: Cross multiply
    272,415.80x = 375,932.66 × 151,568.66
  4. Step 4: Simplify right side
    272,415.80x = 56,979,609,526.44
  5. Step 5: Solve for x
    x = 56,979,609,526.44/272,415.80
  6. Step 6: Final answer
    x = 209,164.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.