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Finding the Fourth Proportional to 111,425.88, 167,142.82 and 36,547.80

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Solution

The fourth proportional to 111,425.88, 167,142.82 and 36,547.80 is: 54,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,425.88 : 167,142.82 = 36,547.80 : x
  2. Step 2: Convert to fraction form
    111,425.88/167,142.82 = 36,547.80/x
  3. Step 3: Cross multiply
    111,425.88x = 167,142.82 × 36,547.80
  4. Step 4: Simplify right side
    111,425.88x = 6,108,702,356.80
  5. Step 5: Solve for x
    x = 6,108,702,356.80/111,425.88
  6. Step 6: Final answer
    x = 54,823.01

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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.