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Finding the Fourth Proportional to 272,659.52, 376,172.75 and 157,875.51

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Solution

The fourth proportional to 272,659.52, 376,172.75 and 157,875.51 is: 217,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,659.52 : 376,172.75 = 157,875.51 : x
  2. Step 2: Convert to fraction form
    272,659.52/376,172.75 = 157,875.51/x
  3. Step 3: Cross multiply
    272,659.52x = 376,172.75 × 157,875.51
  4. Step 4: Simplify right side
    272,659.52x = 59,388,463,964.98
  5. Step 5: Solve for x
    x = 59,388,463,964.98/272,659.52
  6. Step 6: Final answer
    x = 217,811.82

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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.