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Finding the Fourth Proportional to 91,818.64, 126,722.96 and 50,992.08

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Solution

The fourth proportional to 91,818.64, 126,722.96 and 50,992.08 is: 70,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,818.64 : 126,722.96 = 50,992.08 : x
  2. Step 2: Convert to fraction form
    91,818.64/126,722.96 = 50,992.08/x
  3. Step 3: Cross multiply
    91,818.64x = 126,722.96 × 50,992.08
  4. Step 4: Simplify right side
    91,818.64x = 6,461,867,314.16
  5. Step 5: Solve for x
    x = 6,461,867,314.16/91,818.64
  6. Step 6: Final answer
    x = 70,376.42

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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.