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Finding the Fourth Proportional to 73,684.32, 101,684.40 and 40,150.32

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Solution

The fourth proportional to 73,684.32, 101,684.40 and 40,150.32 is: 55,407.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,684.32 : 101,684.40 = 40,150.32 : x
  2. Step 2: Convert to fraction form
    73,684.32/101,684.40 = 40,150.32/x
  3. Step 3: Cross multiply
    73,684.32x = 101,684.40 × 40,150.32
  4. Step 4: Simplify right side
    73,684.32x = 4,082,661,199.01
  5. Step 5: Solve for x
    x = 4,082,661,199.01/73,684.32
  6. Step 6: Final answer
    x = 55,407.46

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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.