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Finding the Fourth Proportional to 116,466.48, 160,724.28 and 66,168.24

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Solution

The fourth proportional to 116,466.48, 160,724.28 and 66,168.24 is: 91,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,466.48 : 160,724.28 = 66,168.24 : x
  2. Step 2: Convert to fraction form
    116,466.48/160,724.28 = 66,168.24/x
  3. Step 3: Cross multiply
    116,466.48x = 160,724.28 × 66,168.24
  4. Step 4: Simplify right side
    116,466.48x = 10,634,842,732.87
  5. Step 5: Solve for x
    x = 10,634,842,732.87/116,466.48
  6. Step 6: Final answer
    x = 91,312.48

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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.