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Finding the Fourth Proportional to 143,457, 215,220.06 and 44,961

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Solution

The fourth proportional to 143,457, 215,220.06 and 44,961 is: 67,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457 : 215,220.06 = 44,961 : x
  2. Step 2: Convert to fraction form
    143,457/215,220.06 = 44,961/x
  3. Step 3: Cross multiply
    143,457x = 215,220.06 × 44,961
  4. Step 4: Simplify right side
    143,457x = 9,676,509,117.66
  5. Step 5: Solve for x
    x = 9,676,509,117.66/143,457
  6. Step 6: Final answer
    x = 67,452.33

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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.