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Finding the Fourth Proportional to 71,736.60, 107,462.34 and 56,080.92

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Solution

The fourth proportional to 71,736.60, 107,462.34 and 56,080.92 is: 84,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,736.60 : 107,462.34 = 56,080.92 : x
  2. Step 2: Convert to fraction form
    71,736.60/107,462.34 = 56,080.92/x
  3. Step 3: Cross multiply
    71,736.60x = 107,462.34 × 56,080.92
  4. Step 4: Simplify right side
    71,736.60x = 6,026,586,892.55
  5. Step 5: Solve for x
    x = 6,026,586,892.55/71,736.60
  6. Step 6: Final answer
    x = 84,009.93

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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.