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Finding the Fourth Proportional to 117,953.55, 162,831.06 and 75,536.28

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Solution

The fourth proportional to 117,953.55, 162,831.06 and 75,536.28 is: 104,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,953.55 : 162,831.06 = 75,536.28 : x
  2. Step 2: Convert to fraction form
    117,953.55/162,831.06 = 75,536.28/x
  3. Step 3: Cross multiply
    117,953.55x = 162,831.06 × 75,536.28
  4. Step 4: Simplify right side
    117,953.55x = 12,299,652,540.86
  5. Step 5: Solve for x
    x = 12,299,652,540.86/117,953.55
  6. Step 6: Final answer
    x = 104,275.39

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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.