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Finding the Fourth Proportional to 111,492, 167,238 and 37,620

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Solution

The fourth proportional to 111,492, 167,238 and 37,620 is: 56,430

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,492 : 167,238 = 37,620 : x
  2. Step 2: Convert to fraction form
    111,492/167,238 = 37,620/x
  3. Step 3: Cross multiply
    111,492x = 167,238 × 37,620
  4. Step 4: Simplify right side
    111,492x = 6,291,493,560
  5. Step 5: Solve for x
    x = 6,291,493,560/111,492
  6. Step 6: Final answer
    x = 56,430

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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.