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Finding the Fourth Proportional to 108,861.52, 150,224.08 and 61,113.92

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Solution

The fourth proportional to 108,861.52, 150,224.08 and 61,113.92 is: 84,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,861.52 : 150,224.08 = 61,113.92 : x
  2. Step 2: Convert to fraction form
    108,861.52/150,224.08 = 61,113.92/x
  3. Step 3: Cross multiply
    108,861.52x = 150,224.08 × 61,113.92
  4. Step 4: Simplify right side
    108,861.52x = 9,180,782,407.19
  5. Step 5: Solve for x
    x = 9,180,782,407.19/108,861.52
  6. Step 6: Final answer
    x = 84,334.51

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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.