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Finding the Fourth Proportional to 92,876.92, 128,178.06 and 52,597.72

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Solution

The fourth proportional to 92,876.92, 128,178.06 and 52,597.72 is: 72,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,876.92 : 128,178.06 = 52,597.72 : x
  2. Step 2: Convert to fraction form
    92,876.92/128,178.06 = 52,597.72/x
  3. Step 3: Cross multiply
    92,876.92x = 128,178.06 × 52,597.72
  4. Step 4: Simplify right side
    92,876.92x = 6,741,873,710.02
  5. Step 5: Solve for x
    x = 6,741,873,710.02/92,876.92
  6. Step 6: Final answer
    x = 72,589.33

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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.