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Finding the Fourth Proportional to 71,650.72, 98,888.92 and 51,574.08

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Solution

The fourth proportional to 71,650.72, 98,888.92 and 51,574.08 is: 71,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,650.72 : 98,888.92 = 51,574.08 : x
  2. Step 2: Convert to fraction form
    71,650.72/98,888.92 = 51,574.08/x
  3. Step 3: Cross multiply
    71,650.72x = 98,888.92 × 51,574.08
  4. Step 4: Simplify right side
    71,650.72x = 5,100,105,071.19
  5. Step 5: Solve for x
    x = 5,100,105,071.19/71,650.72
  6. Step 6: Final answer
    x = 71,180.10

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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.