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Finding the Fourth Proportional to 107,371.47, 160,846.51 and 87,402.43

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Solution

The fourth proportional to 107,371.47, 160,846.51 and 87,402.43 is: 130,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,371.47 : 160,846.51 = 87,402.43 : x
  2. Step 2: Convert to fraction form
    107,371.47/160,846.51 = 87,402.43/x
  3. Step 3: Cross multiply
    107,371.47x = 160,846.51 × 87,402.43
  4. Step 4: Simplify right side
    107,371.47x = 14,058,375,831.02
  5. Step 5: Solve for x
    x = 14,058,375,831.02/107,371.47
  6. Step 6: Final answer
    x = 130,932.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.