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Finding the Fourth Proportional to 93,640.89, 129,224.43 and 51,199.43

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Solution

The fourth proportional to 93,640.89, 129,224.43 and 51,199.43 is: 70,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,640.89 : 129,224.43 = 51,199.43 : x
  2. Step 2: Convert to fraction form
    93,640.89/129,224.43 = 51,199.43/x
  3. Step 3: Cross multiply
    93,640.89x = 129,224.43 × 51,199.43
  4. Step 4: Simplify right side
    93,640.89x = 6,616,216,511.95
  5. Step 5: Solve for x
    x = 6,616,216,511.95/93,640.89
  6. Step 6: Final answer
    x = 70,655.21

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1.5x scale

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.