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Finding the Fourth Proportional to 207,036.88, 285,721.03 and 116,421.37

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Solution

The fourth proportional to 207,036.88, 285,721.03 and 116,421.37 is: 160,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,036.88 : 285,721.03 = 116,421.37 : x
  2. Step 2: Convert to fraction form
    207,036.88/285,721.03 = 116,421.37/x
  3. Step 3: Cross multiply
    207,036.88x = 285,721.03 × 116,421.37
  4. Step 4: Simplify right side
    207,036.88x = 33,264,033,750.41
  5. Step 5: Solve for x
    x = 33,264,033,750.41/207,036.88
  6. Step 6: Final answer
    x = 160,667.19

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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.