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Finding the Fourth Proportional to 117,200.04, 161,724.48 and 65,507.60

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Solution

The fourth proportional to 117,200.04, 161,724.48 and 65,507.60 is: 90,394.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,200.04 : 161,724.48 = 65,507.60 : x
  2. Step 2: Convert to fraction form
    117,200.04/161,724.48 = 65,507.60/x
  3. Step 3: Cross multiply
    117,200.04x = 161,724.48 × 65,507.60
  4. Step 4: Simplify right side
    117,200.04x = 10,594,182,546.05
  5. Step 5: Solve for x
    x = 10,594,182,546.05/117,200.04
  6. Step 6: Final answer
    x = 90,394.02

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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.