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Finding the Fourth Proportional to 201,058.04, 277,449.27 and 115,018.73

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Solution

The fourth proportional to 201,058.04, 277,449.27 and 115,018.73 is: 158,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,058.04 : 277,449.27 = 115,018.73 : x
  2. Step 2: Convert to fraction form
    201,058.04/277,449.27 = 115,018.73/x
  3. Step 3: Cross multiply
    201,058.04x = 277,449.27 × 115,018.73
  4. Step 4: Simplify right side
    201,058.04x = 31,911,862,674.83
  5. Step 5: Solve for x
    x = 31,911,862,674.83/201,058.04
  6. Step 6: Final answer
    x = 158,719.65

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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.