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Finding the Fourth Proportional to 282,358.54, 423,448 and 92,775.20

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Solution

The fourth proportional to 282,358.54, 423,448 and 92,775.20 is: 139,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,358.54 : 423,448 = 92,775.20 : x
  2. Step 2: Convert to fraction form
    282,358.54/423,448 = 92,775.20/x
  3. Step 3: Cross multiply
    282,358.54x = 423,448 × 92,775.20
  4. Step 4: Simplify right side
    282,358.54x = 39,285,472,889.60
  5. Step 5: Solve for x
    x = 39,285,472,889.60/282,358.54
  6. Step 6: Final answer
    x = 139,133.29

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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.