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Finding the Fourth Proportional to 66,576.30, 99,864.45 and 60,452.70

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Solution

The fourth proportional to 66,576.30, 99,864.45 and 60,452.70 is: 90,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.30 : 99,864.45 = 60,452.70 : x
  2. Step 2: Convert to fraction form
    66,576.30/99,864.45 = 60,452.70/x
  3. Step 3: Cross multiply
    66,576.30x = 99,864.45 × 60,452.70
  4. Step 4: Simplify right side
    66,576.30x = 6,037,075,636.52
  5. Step 5: Solve for x
    x = 6,037,075,636.52/66,576.30
  6. Step 6: Final answer
    x = 90,679.05

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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.