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Finding the Fourth Proportional to 94,731.60, 132,870 and 94,731.60

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Solution

The fourth proportional to 94,731.60, 132,870 and 94,731.60 is: 132,870

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,731.60 : 132,870 = 94,731.60 : x
  2. Step 2: Convert to fraction form
    94,731.60/132,870 = 94,731.60/x
  3. Step 3: Cross multiply
    94,731.60x = 132,870 × 94,731.60
  4. Step 4: Simplify right side
    94,731.60x = 12,586,987,692
  5. Step 5: Solve for x
    x = 12,586,987,692/94,731.60
  6. Step 6: Final answer
    x = 132,870

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.