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Finding the Fourth Proportional to 358,632, 537,962.82 and 105,912.54

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Solution

The fourth proportional to 358,632, 537,962.82 and 105,912.54 is: 158,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,632 : 537,962.82 = 105,912.54 : x
  2. Step 2: Convert to fraction form
    358,632/537,962.82 = 105,912.54/x
  3. Step 3: Cross multiply
    358,632x = 537,962.82 × 105,912.54
  4. Step 4: Simplify right side
    358,632x = 56,977,008,691.76
  5. Step 5: Solve for x
    x = 56,977,008,691.76/358,632
  6. Step 6: Final answer
    x = 158,873.19

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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.