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Finding the Fourth Proportional to 89,873.65, 124,024.75 and 49,587.72

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Solution

The fourth proportional to 89,873.65, 124,024.75 and 49,587.72 is: 68,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,873.65 : 124,024.75 = 49,587.72 : x
  2. Step 2: Convert to fraction form
    89,873.65/124,024.75 = 49,587.72/x
  3. Step 3: Cross multiply
    89,873.65x = 124,024.75 × 49,587.72
  4. Step 4: Simplify right side
    89,873.65x = 6,150,104,576.07
  5. Step 5: Solve for x
    x = 6,150,104,576.07/89,873.65
  6. Step 6: Final answer
    x = 68,430.56

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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.