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Finding the Fourth Proportional to 76,168.62, 105,080.10 and 45,936.74

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Solution

The fourth proportional to 76,168.62, 105,080.10 and 45,936.74 is: 63,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,168.62 : 105,080.10 = 45,936.74 : x
  2. Step 2: Convert to fraction form
    76,168.62/105,080.10 = 45,936.74/x
  3. Step 3: Cross multiply
    76,168.62x = 105,080.10 × 45,936.74
  4. Step 4: Simplify right side
    76,168.62x = 4,827,037,232.87
  5. Step 5: Solve for x
    x = 4,827,037,232.87/76,168.62
  6. Step 6: Final answer
    x = 63,373.04

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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.