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Finding the Fourth Proportional to 187,505.52, 258,668.16 and 115,859.76

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Solution

The fourth proportional to 187,505.52, 258,668.16 and 115,859.76 is: 159,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,505.52 : 258,668.16 = 115,859.76 : x
  2. Step 2: Convert to fraction form
    187,505.52/258,668.16 = 115,859.76/x
  3. Step 3: Cross multiply
    187,505.52x = 258,668.16 × 115,859.76
  4. Step 4: Simplify right side
    187,505.52x = 29,969,230,937.24
  5. Step 5: Solve for x
    x = 29,969,230,937.24/187,505.52
  6. Step 6: Final answer
    x = 159,831.19

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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.