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Finding the Fourth Proportional to 111,929.80, 167,894.70 and 62,675.40

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Solution

The fourth proportional to 111,929.80, 167,894.70 and 62,675.40 is: 94,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,929.80 : 167,894.70 = 62,675.40 : x
  2. Step 2: Convert to fraction form
    111,929.80/167,894.70 = 62,675.40/x
  3. Step 3: Cross multiply
    111,929.80x = 167,894.70 × 62,675.40
  4. Step 4: Simplify right side
    111,929.80x = 10,522,867,480.38
  5. Step 5: Solve for x
    x = 10,522,867,480.38/111,929.80
  6. Step 6: Final answer
    x = 94,013.10

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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.