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Finding the Fourth Proportional to 313,649.92, 470,631.19 and 124,246.81

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Solution

The fourth proportional to 313,649.92, 470,631.19 and 124,246.81 is: 186,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,649.92 : 470,631.19 = 124,246.81 : x
  2. Step 2: Convert to fraction form
    313,649.92/470,631.19 = 124,246.81/x
  3. Step 3: Cross multiply
    313,649.92x = 470,631.19 × 124,246.81
  4. Step 4: Simplify right side
    313,649.92x = 58,474,424,044.00
  5. Step 5: Solve for x
    x = 58,474,424,044.00/313,649.92
  6. Step 6: Final answer
    x = 186,432.13

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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.