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Finding the Fourth Proportional to 76,097.64, 104,990.94 and 45,892.20

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Solution

The fourth proportional to 76,097.64, 104,990.94 and 45,892.20 is: 63,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,097.64 : 104,990.94 = 45,892.20 : x
  2. Step 2: Convert to fraction form
    76,097.64/104,990.94 = 45,892.20/x
  3. Step 3: Cross multiply
    76,097.64x = 104,990.94 × 45,892.20
  4. Step 4: Simplify right side
    76,097.64x = 4,818,265,216.67
  5. Step 5: Solve for x
    x = 4,818,265,216.67/76,097.64
  6. Step 6: Final answer
    x = 63,316.88

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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.