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Finding the Fourth Proportional to 317,956.95, 438,780.51 and 174,726.27

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Solution

The fourth proportional to 317,956.95, 438,780.51 and 174,726.27 is: 241,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,956.95 : 438,780.51 = 174,726.27 : x
  2. Step 2: Convert to fraction form
    317,956.95/438,780.51 = 174,726.27/x
  3. Step 3: Cross multiply
    317,956.95x = 438,780.51 × 174,726.27
  4. Step 4: Simplify right side
    317,956.95x = 76,666,481,861.00
  5. Step 5: Solve for x
    x = 76,666,481,861.00/317,956.95
  6. Step 6: Final answer
    x = 241,122.21

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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.