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Finding the Fourth Proportional to 358,505.89, 537,773.67 and 105,786.38

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Solution

The fourth proportional to 358,505.89, 537,773.67 and 105,786.38 is: 158,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,505.89 : 537,773.67 = 105,786.38 : x
  2. Step 2: Convert to fraction form
    358,505.89/537,773.67 = 105,786.38/x
  3. Step 3: Cross multiply
    358,505.89x = 537,773.67 × 105,786.38
  4. Step 4: Simplify right side
    358,505.89x = 56,889,127,119.75
  5. Step 5: Solve for x
    x = 56,889,127,119.75/358,505.89
  6. Step 6: Final answer
    x = 158,683.94

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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.