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Finding the Fourth Proportional to 127,693.80, 191,560.95 and 38,926.98

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Solution

The fourth proportional to 127,693.80, 191,560.95 and 38,926.98 is: 58,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,693.80 : 191,560.95 = 38,926.98 : x
  2. Step 2: Convert to fraction form
    127,693.80/191,560.95 = 38,926.98/x
  3. Step 3: Cross multiply
    127,693.80x = 191,560.95 × 38,926.98
  4. Step 4: Simplify right side
    127,693.80x = 7,456,889,269.43
  5. Step 5: Solve for x
    x = 7,456,889,269.43/127,693.80
  6. Step 6: Final answer
    x = 58,396.64

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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.