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Finding the Fourth Proportional to 89,887.60, 124,069.56 and 52,174

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Solution

The fourth proportional to 89,887.60, 124,069.56 and 52,174 is: 72,014.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,887.60 : 124,069.56 = 52,174 : x
  2. Step 2: Convert to fraction form
    89,887.60/124,069.56 = 52,174/x
  3. Step 3: Cross multiply
    89,887.60x = 124,069.56 × 52,174
  4. Step 4: Simplify right side
    89,887.60x = 6,473,205,223.44
  5. Step 5: Solve for x
    x = 6,473,205,223.44/89,887.60
  6. Step 6: Final answer
    x = 72,014.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.