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Finding the Fourth Proportional to 188,762.56, 260,487.52 and 102,717.92

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Solution

The fourth proportional to 188,762.56, 260,487.52 and 102,717.92 is: 141,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,762.56 : 260,487.52 = 102,717.92 : x
  2. Step 2: Convert to fraction form
    188,762.56/260,487.52 = 102,717.92/x
  3. Step 3: Cross multiply
    188,762.56x = 260,487.52 × 102,717.92
  4. Step 4: Simplify right side
    188,762.56x = 26,756,736,240.36
  5. Step 5: Solve for x
    x = 26,756,736,240.36/188,762.56
  6. Step 6: Final answer
    x = 141,748.11

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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.