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Finding the Fourth Proportional to 116,832.61, 161,237.51 and 65,153.22

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Solution

The fourth proportional to 116,832.61, 161,237.51 and 65,153.22 is: 89,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,832.61 : 161,237.51 = 65,153.22 : x
  2. Step 2: Convert to fraction form
    116,832.61/161,237.51 = 65,153.22/x
  3. Step 3: Cross multiply
    116,832.61x = 161,237.51 × 65,153.22
  4. Step 4: Simplify right side
    116,832.61x = 10,505,142,961.28
  5. Step 5: Solve for x
    x = 10,505,142,961.28/116,832.61
  6. Step 6: Final answer
    x = 89,916.19

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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.