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Finding the Fourth Proportional to 117,000.92, 161,461.31 and 66,024.49

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Solution

The fourth proportional to 117,000.92, 161,461.31 and 66,024.49 is: 91,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,000.92 : 161,461.31 = 66,024.49 : x
  2. Step 2: Convert to fraction form
    117,000.92/161,461.31 = 66,024.49/x
  3. Step 3: Cross multiply
    117,000.92x = 161,461.31 × 66,024.49
  4. Step 4: Simplify right side
    117,000.92x = 10,660,399,510.05
  5. Step 5: Solve for x
    x = 10,660,399,510.05/117,000.92
  6. Step 6: Final answer
    x = 91,113.81

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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.