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Finding the Fourth Proportional to 553,899.56, 831,042.66 and 174,878.96

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Solution

The fourth proportional to 553,899.56, 831,042.66 and 174,878.96 is: 262,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,899.56 : 831,042.66 = 174,878.96 : x
  2. Step 2: Convert to fraction form
    553,899.56/831,042.66 = 174,878.96/x
  3. Step 3: Cross multiply
    553,899.56x = 831,042.66 × 174,878.96
  4. Step 4: Simplify right side
    553,899.56x = 145,331,876,096.43
  5. Step 5: Solve for x
    x = 145,331,876,096.43/553,899.56
  6. Step 6: Final answer
    x = 262,379.48

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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.