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Finding the Fourth Proportional to 163,015.70, 244,523.55 and 74,442.20

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Solution

The fourth proportional to 163,015.70, 244,523.55 and 74,442.20 is: 111,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,015.70 : 244,523.55 = 74,442.20 : x
  2. Step 2: Convert to fraction form
    163,015.70/244,523.55 = 74,442.20/x
  3. Step 3: Cross multiply
    163,015.70x = 244,523.55 × 74,442.20
  4. Step 4: Simplify right side
    163,015.70x = 18,202,871,013.81
  5. Step 5: Solve for x
    x = 18,202,871,013.81/163,015.70
  6. Step 6: Final answer
    x = 111,663.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.