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Finding the Fourth Proportional to 317,527.11, 438,111.99 and 179,707.80

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Solution

The fourth proportional to 317,527.11, 438,111.99 and 179,707.80 is: 247,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,527.11 : 438,111.99 = 179,707.80 : x
  2. Step 2: Convert to fraction form
    317,527.11/438,111.99 = 179,707.80/x
  3. Step 3: Cross multiply
    317,527.11x = 438,111.99 × 179,707.80
  4. Step 4: Simplify right side
    317,527.11x = 78,732,141,876.52
  5. Step 5: Solve for x
    x = 78,732,141,876.52/317,527.11
  6. Step 6: Final answer
    x = 247,954.08

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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.