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Finding the Fourth Proportional to 103,576.53, 155,387.58 and 61,495.01

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Solution

The fourth proportional to 103,576.53, 155,387.58 and 61,495.01 is: 92,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,576.53 : 155,387.58 = 61,495.01 : x
  2. Step 2: Convert to fraction form
    103,576.53/155,387.58 = 61,495.01/x
  3. Step 3: Cross multiply
    103,576.53x = 155,387.58 × 61,495.01
  4. Step 4: Simplify right side
    103,576.53x = 9,555,560,785.98
  5. Step 5: Solve for x
    x = 9,555,560,785.98/103,576.53
  6. Step 6: Final answer
    x = 92,256.04

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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.