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Finding the Fourth Proportional to 312,576.63, 468,929.73 and 125,602.71

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Solution

The fourth proportional to 312,576.63, 468,929.73 and 125,602.71 is: 188,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,576.63 : 468,929.73 = 125,602.71 : x
  2. Step 2: Convert to fraction form
    312,576.63/468,929.73 = 125,602.71/x
  3. Step 3: Cross multiply
    312,576.63x = 468,929.73 × 125,602.71
  4. Step 4: Simplify right side
    312,576.63x = 58,898,844,887.57
  5. Step 5: Solve for x
    x = 58,898,844,887.57/312,576.63
  6. Step 6: Final answer
    x = 188,430.10

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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.