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Finding the Fourth Proportional to 107,201.28, 147,905.28 and 69,444.48

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Solution

The fourth proportional to 107,201.28, 147,905.28 and 69,444.48 is: 95,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,201.28 : 147,905.28 = 69,444.48 : x
  2. Step 2: Convert to fraction form
    107,201.28/147,905.28 = 69,444.48/x
  3. Step 3: Cross multiply
    107,201.28x = 147,905.28 × 69,444.48
  4. Step 4: Simplify right side
    107,201.28x = 10,271,205,258.85
  5. Step 5: Solve for x
    x = 10,271,205,258.85/107,201.28
  6. Step 6: Final answer
    x = 95,812.34

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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.