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Finding the Fourth Proportional to 84,996, 127,389.40 and 37,559.98

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Solution

The fourth proportional to 84,996, 127,389.40 and 37,559.98 is: 56,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,996 : 127,389.40 = 37,559.98 : x
  2. Step 2: Convert to fraction form
    84,996/127,389.40 = 37,559.98/x
  3. Step 3: Cross multiply
    84,996x = 127,389.40 × 37,559.98
  4. Step 4: Simplify right side
    84,996x = 4,784,743,316.21
  5. Step 5: Solve for x
    x = 4,784,743,316.21/84,996
  6. Step 6: Final answer
    x = 56,293.75

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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.