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Finding the Fourth Proportional to 66,049.20, 99,073.80 and 52,927.20

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Solution

The fourth proportional to 66,049.20, 99,073.80 and 52,927.20 is: 79,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,049.20 : 99,073.80 = 52,927.20 : x
  2. Step 2: Convert to fraction form
    66,049.20/99,073.80 = 52,927.20/x
  3. Step 3: Cross multiply
    66,049.20x = 99,073.80 × 52,927.20
  4. Step 4: Simplify right side
    66,049.20x = 5,243,698,827.36
  5. Step 5: Solve for x
    x = 5,243,698,827.36/66,049.20
  6. Step 6: Final answer
    x = 79,390.80

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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.