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Finding the Fourth Proportional to 127,888.27, 191,887.68 and 68,654.77

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Solution

The fourth proportional to 127,888.27, 191,887.68 and 68,654.77 is: 103,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,888.27 : 191,887.68 = 68,654.77 : x
  2. Step 2: Convert to fraction form
    127,888.27/191,887.68 = 68,654.77/x
  3. Step 3: Cross multiply
    127,888.27x = 191,887.68 × 68,654.77
  4. Step 4: Simplify right side
    127,888.27x = 13,174,004,536.23
  5. Step 5: Solve for x
    x = 13,174,004,536.23/127,888.27
  6. Step 6: Final answer
    x = 103,011.83

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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.