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Finding the Fourth Proportional to 118,803.54, 163,953.81 and 65,093.22

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Solution

The fourth proportional to 118,803.54, 163,953.81 and 65,093.22 is: 89,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,803.54 : 163,953.81 = 65,093.22 : x
  2. Step 2: Convert to fraction form
    118,803.54/163,953.81 = 65,093.22/x
  3. Step 3: Cross multiply
    118,803.54x = 163,953.81 × 65,093.22
  4. Step 4: Simplify right side
    118,803.54x = 10,672,281,424.17
  5. Step 5: Solve for x
    x = 10,672,281,424.17/118,803.54
  6. Step 6: Final answer
    x = 89,831.34

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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.