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Finding the Fourth Proportional to 272,140.56, 375,528.56 and 157,400.82

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Solution

The fourth proportional to 272,140.56, 375,528.56 and 157,400.82 is: 217,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,140.56 : 375,528.56 = 157,400.82 : x
  2. Step 2: Convert to fraction form
    272,140.56/375,528.56 = 157,400.82/x
  3. Step 3: Cross multiply
    272,140.56x = 375,528.56 × 157,400.82
  4. Step 4: Simplify right side
    272,140.56x = 59,108,502,490.42
  5. Step 5: Solve for x
    x = 59,108,502,490.42/272,140.56
  6. Step 6: Final answer
    x = 217,198.43

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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.