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Finding the Fourth Proportional to 316,880.99, 475,399.40 and 92,243.36

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Solution

The fourth proportional to 316,880.99, 475,399.40 and 92,243.36 is: 138,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,880.99 : 475,399.40 = 92,243.36 : x
  2. Step 2: Convert to fraction form
    316,880.99/475,399.40 = 92,243.36/x
  3. Step 3: Cross multiply
    316,880.99x = 475,399.40 × 92,243.36
  4. Step 4: Simplify right side
    316,880.99x = 43,852,435,159.77
  5. Step 5: Solve for x
    x = 43,852,435,159.77/316,880.99
  6. Step 6: Final answer
    x = 138,387.71

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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.