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Finding the Fourth Proportional to 76,574.32, 114,725.16 and 65,366.64

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Solution

The fourth proportional to 76,574.32, 114,725.16 and 65,366.64 is: 97,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,574.32 : 114,725.16 = 65,366.64 : x
  2. Step 2: Convert to fraction form
    76,574.32/114,725.16 = 65,366.64/x
  3. Step 3: Cross multiply
    76,574.32x = 114,725.16 × 65,366.64
  4. Step 4: Simplify right side
    76,574.32x = 7,499,198,232.66
  5. Step 5: Solve for x
    x = 7,499,198,232.66/76,574.32
  6. Step 6: Final answer
    x = 97,933.59

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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.