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Finding the Fourth Proportional to 101,699.10, 152,505.45 and 49,124.70

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Solution

The fourth proportional to 101,699.10, 152,505.45 and 49,124.70 is: 73,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,699.10 : 152,505.45 = 49,124.70 : x
  2. Step 2: Convert to fraction form
    101,699.10/152,505.45 = 49,124.70/x
  3. Step 3: Cross multiply
    101,699.10x = 152,505.45 × 49,124.70
  4. Step 4: Simplify right side
    101,699.10x = 7,491,784,479.62
  5. Step 5: Solve for x
    x = 7,491,784,479.62/101,699.10
  6. Step 6: Final answer
    x = 73,666.18

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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.