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Finding the Fourth Proportional to 79,260.60, 109,376.34 and 47,410.68

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Solution

The fourth proportional to 79,260.60, 109,376.34 and 47,410.68 is: 65,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,260.60 : 109,376.34 = 47,410.68 : x
  2. Step 2: Convert to fraction form
    79,260.60/109,376.34 = 47,410.68/x
  3. Step 3: Cross multiply
    79,260.60x = 109,376.34 × 47,410.68
  4. Step 4: Simplify right side
    79,260.60x = 5,185,606,655.31
  5. Step 5: Solve for x
    x = 5,185,606,655.31/79,260.60
  6. Step 6: Final answer
    x = 65,424.77

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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.