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Finding the Fourth Proportional to 188,687.76, 282,929.16 and 93,709.56

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Solution

The fourth proportional to 188,687.76, 282,929.16 and 93,709.56 is: 140,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,687.76 : 282,929.16 = 93,709.56 : x
  2. Step 2: Convert to fraction form
    188,687.76/282,929.16 = 93,709.56/x
  3. Step 3: Cross multiply
    188,687.76x = 282,929.16 × 93,709.56
  4. Step 4: Simplify right side
    188,687.76x = 26,513,167,094.77
  5. Step 5: Solve for x
    x = 26,513,167,094.77/188,687.76
  6. Step 6: Final answer
    x = 140,513.44

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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.