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Finding the Fourth Proportional to 76,494.32, 114,644.12 and 43,232.92

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Solution

The fourth proportional to 76,494.32, 114,644.12 and 43,232.92 is: 64,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,494.32 : 114,644.12 = 43,232.92 : x
  2. Step 2: Convert to fraction form
    76,494.32/114,644.12 = 43,232.92/x
  3. Step 3: Cross multiply
    76,494.32x = 114,644.12 × 43,232.92
  4. Step 4: Simplify right side
    76,494.32x = 4,956,400,068.43
  5. Step 5: Solve for x
    x = 4,956,400,068.43/76,494.32
  6. Step 6: Final answer
    x = 64,794.35

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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.