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Finding the Fourth Proportional to 68,681.34, 103,000.14 and 21,923.28

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Solution

The fourth proportional to 68,681.34, 103,000.14 and 21,923.28 is: 32,877.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,681.34 : 103,000.14 = 21,923.28 : x
  2. Step 2: Convert to fraction form
    68,681.34/103,000.14 = 21,923.28/x
  3. Step 3: Cross multiply
    68,681.34x = 103,000.14 × 21,923.28
  4. Step 4: Simplify right side
    68,681.34x = 2,258,100,909.26
  5. Step 5: Solve for x
    x = 2,258,100,909.26/68,681.34
  6. Step 6: Final answer
    x = 32,877.94

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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.