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Finding the Fourth Proportional to 307,955.59, 424,734.74 and 187,093.46

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Solution

The fourth proportional to 307,955.59, 424,734.74 and 187,093.46 is: 258,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,955.59 : 424,734.74 = 187,093.46 : x
  2. Step 2: Convert to fraction form
    307,955.59/424,734.74 = 187,093.46/x
  3. Step 3: Cross multiply
    307,955.59x = 424,734.74 × 187,093.46
  4. Step 4: Simplify right side
    307,955.59x = 79,465,092,916.77
  5. Step 5: Solve for x
    x = 79,465,092,916.77/307,955.59
  6. Step 6: Final answer
    x = 258,040.76

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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.