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Finding the Fourth Proportional to 111,800.16, 154,270.19 and 75,580.40

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Solution

The fourth proportional to 111,800.16, 154,270.19 and 75,580.40 is: 104,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,800.16 : 154,270.19 = 75,580.40 : x
  2. Step 2: Convert to fraction form
    111,800.16/154,270.19 = 75,580.40/x
  3. Step 3: Cross multiply
    111,800.16x = 154,270.19 × 75,580.40
  4. Step 4: Simplify right side
    111,800.16x = 11,659,801,519.02
  5. Step 5: Solve for x
    x = 11,659,801,519.02/111,800.16
  6. Step 6: Final answer
    x = 104,291.46

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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.