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Finding the Fourth Proportional to 60,916.20, 91,374.30 and 34,672.20

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Solution

The fourth proportional to 60,916.20, 91,374.30 and 34,672.20 is: 52,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,916.20 : 91,374.30 = 34,672.20 : x
  2. Step 2: Convert to fraction form
    60,916.20/91,374.30 = 34,672.20/x
  3. Step 3: Cross multiply
    60,916.20x = 91,374.30 × 34,672.20
  4. Step 4: Simplify right side
    60,916.20x = 3,168,148,004.46
  5. Step 5: Solve for x
    x = 3,168,148,004.46/60,916.20
  6. Step 6: Final answer
    x = 52,008.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.