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Finding the Fourth Proportional to 73,520.84, 110,264.70 and 20,929.16

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Solution

The fourth proportional to 73,520.84, 110,264.70 and 20,929.16 is: 31,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,520.84 : 110,264.70 = 20,929.16 : x
  2. Step 2: Convert to fraction form
    73,520.84/110,264.70 = 20,929.16/x
  3. Step 3: Cross multiply
    73,520.84x = 110,264.70 × 20,929.16
  4. Step 4: Simplify right side
    73,520.84x = 2,307,747,548.65
  5. Step 5: Solve for x
    x = 2,307,747,548.65/73,520.84
  6. Step 6: Final answer
    x = 31,389.03

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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.