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Finding the Fourth Proportional to 127,891.62, 176,483.94 and 70,540.92

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Solution

The fourth proportional to 127,891.62, 176,483.94 and 70,540.92 is: 97,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,891.62 : 176,483.94 = 70,540.92 : x
  2. Step 2: Convert to fraction form
    127,891.62/176,483.94 = 70,540.92/x
  3. Step 3: Cross multiply
    127,891.62x = 176,483.94 × 70,540.92
  4. Step 4: Simplify right side
    127,891.62x = 12,449,339,492.82
  5. Step 5: Solve for x
    x = 12,449,339,492.82/127,891.62
  6. Step 6: Final answer
    x = 97,342.89

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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.