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Finding the Fourth Proportional to 316,293.09, 436,484.19 and 173,053.71

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Solution

The fourth proportional to 316,293.09, 436,484.19 and 173,053.71 is: 238,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,293.09 : 436,484.19 = 173,053.71 : x
  2. Step 2: Convert to fraction form
    316,293.09/436,484.19 = 173,053.71/x
  3. Step 3: Cross multiply
    316,293.09x = 436,484.19 × 173,053.71
  4. Step 4: Simplify right side
    316,293.09x = 75,535,208,435.84
  5. Step 5: Solve for x
    x = 75,535,208,435.84/316,293.09
  6. Step 6: Final answer
    x = 238,813.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.