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Finding the Fourth Proportional to 117,007.40, 175,511.10 and 115,257.80

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Solution

The fourth proportional to 117,007.40, 175,511.10 and 115,257.80 is: 172,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.40 : 175,511.10 = 115,257.80 : x
  2. Step 2: Convert to fraction form
    117,007.40/175,511.10 = 115,257.80/x
  3. Step 3: Cross multiply
    117,007.40x = 175,511.10 × 115,257.80
  4. Step 4: Simplify right side
    117,007.40x = 20,229,023,261.58
  5. Step 5: Solve for x
    x = 20,229,023,261.58/117,007.40
  6. Step 6: Final answer
    x = 172,886.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.