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Finding the Fourth Proportional to 59,486.40, 89,054.29 and 52,105.28

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Solution

The fourth proportional to 59,486.40, 89,054.29 and 52,105.28 is: 78,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,486.40 : 89,054.29 = 52,105.28 : x
  2. Step 2: Convert to fraction form
    59,486.40/89,054.29 = 52,105.28/x
  3. Step 3: Cross multiply
    59,486.40x = 89,054.29 × 52,105.28
  4. Step 4: Simplify right side
    59,486.40x = 4,640,198,335.51
  5. Step 5: Solve for x
    x = 4,640,198,335.51/59,486.40
  6. Step 6: Final answer
    x = 78,004.36

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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.