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Finding the Fourth Proportional to 89,866.98, 124,015.63 and 49,581.10

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Solution

The fourth proportional to 89,866.98, 124,015.63 and 49,581.10 is: 68,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,866.98 : 124,015.63 = 49,581.10 : x
  2. Step 2: Convert to fraction form
    89,866.98/124,015.63 = 49,581.10/x
  3. Step 3: Cross multiply
    89,866.98x = 124,015.63 × 49,581.10
  4. Step 4: Simplify right side
    89,866.98x = 6,148,831,352.59
  5. Step 5: Solve for x
    x = 6,148,831,352.59/89,866.98
  6. Step 6: Final answer
    x = 68,421.48

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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.