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Finding the Fourth Proportional to 111,465.90, 167,308.20 and 55,369.35

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Solution

The fourth proportional to 111,465.90, 167,308.20 and 55,369.35 is: 83,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,465.90 : 167,308.20 = 55,369.35 : x
  2. Step 2: Convert to fraction form
    111,465.90/167,308.20 = 55,369.35/x
  3. Step 3: Cross multiply
    111,465.90x = 167,308.20 × 55,369.35
  4. Step 4: Simplify right side
    111,465.90x = 9,263,746,283.67
  5. Step 5: Solve for x
    x = 9,263,746,283.67/111,465.90
  6. Step 6: Final answer
    x = 83,108.34

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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.