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Finding the Fourth Proportional to 170,915.67, 235,862.21 and 94,434.53

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Solution

The fourth proportional to 170,915.67, 235,862.21 and 94,434.53 is: 130,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,915.67 : 235,862.21 = 94,434.53 : x
  2. Step 2: Convert to fraction form
    170,915.67/235,862.21 = 94,434.53/x
  3. Step 3: Cross multiply
    170,915.67x = 235,862.21 × 94,434.53
  4. Step 4: Simplify right side
    170,915.67x = 22,273,536,002.89
  5. Step 5: Solve for x
    x = 22,273,536,002.89/170,915.67
  6. Step 6: Final answer
    x = 130,318.86

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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.