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Finding the Fourth Proportional to 110,689.40, 166,034.10 and 63,887.60

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Solution

The fourth proportional to 110,689.40, 166,034.10 and 63,887.60 is: 95,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,689.40 : 166,034.10 = 63,887.60 : x
  2. Step 2: Convert to fraction form
    110,689.40/166,034.10 = 63,887.60/x
  3. Step 3: Cross multiply
    110,689.40x = 166,034.10 × 63,887.60
  4. Step 4: Simplify right side
    110,689.40x = 10,607,520,167.16
  5. Step 5: Solve for x
    x = 10,607,520,167.16/110,689.40
  6. Step 6: Final answer
    x = 95,831.40

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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.