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Finding the Fourth Proportional to 92,947.65, 128,269.35 and 52,660.41

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Solution

The fourth proportional to 92,947.65, 128,269.35 and 52,660.41 is: 72,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,947.65 : 128,269.35 = 52,660.41 : x
  2. Step 2: Convert to fraction form
    92,947.65/128,269.35 = 52,660.41/x
  3. Step 3: Cross multiply
    92,947.65x = 128,269.35 × 52,660.41
  4. Step 4: Simplify right side
    92,947.65x = 6,754,716,561.43
  5. Step 5: Solve for x
    x = 6,754,716,561.43/92,947.65
  6. Step 6: Final answer
    x = 72,672.27

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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.