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Finding the Fourth Proportional to 73,120.32, 100,941.12 and 46,275.84

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Solution

The fourth proportional to 73,120.32, 100,941.12 and 46,275.84 is: 63,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,120.32 : 100,941.12 = 46,275.84 : x
  2. Step 2: Convert to fraction form
    73,120.32/100,941.12 = 46,275.84/x
  3. Step 3: Cross multiply
    73,120.32x = 100,941.12 × 46,275.84
  4. Step 4: Simplify right side
    73,120.32x = 4,671,135,118.54
  5. Step 5: Solve for x
    x = 4,671,135,118.54/73,120.32
  6. Step 6: Final answer
    x = 63,882.86

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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.