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Finding the Fourth Proportional to 127,597.15, 191,391.27 and 68,548.15

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Solution

The fourth proportional to 127,597.15, 191,391.27 and 68,548.15 is: 102,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,597.15 : 191,391.27 = 68,548.15 : x
  2. Step 2: Convert to fraction form
    127,597.15/191,391.27 = 68,548.15/x
  3. Step 3: Cross multiply
    127,597.15x = 191,391.27 × 68,548.15
  4. Step 4: Simplify right side
    127,597.15x = 13,119,517,484.65
  5. Step 5: Solve for x
    x = 13,119,517,484.65/127,597.15
  6. Step 6: Final answer
    x = 102,819.83

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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.