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Finding the Fourth Proportional to 130,003.30, 195,004.95 and 70,954.30

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Solution

The fourth proportional to 130,003.30, 195,004.95 and 70,954.30 is: 106,431.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,003.30 : 195,004.95 = 70,954.30 : x
  2. Step 2: Convert to fraction form
    130,003.30/195,004.95 = 70,954.30/x
  3. Step 3: Cross multiply
    130,003.30x = 195,004.95 × 70,954.30
  4. Step 4: Simplify right side
    130,003.30x = 13,836,439,723.79
  5. Step 5: Solve for x
    x = 13,836,439,723.79/130,003.30
  6. Step 6: Final answer
    x = 106,431.45

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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.