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Finding the Fourth Proportional to 139,455.65, 192,227.96 and 127,871.39

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Solution

The fourth proportional to 139,455.65, 192,227.96 and 127,871.39 is: 176,260.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,455.65 : 192,227.96 = 127,871.39 : x
  2. Step 2: Convert to fraction form
    139,455.65/192,227.96 = 127,871.39/x
  3. Step 3: Cross multiply
    139,455.65x = 192,227.96 × 127,871.39
  4. Step 4: Simplify right side
    139,455.65x = 24,580,457,242.31
  5. Step 5: Solve for x
    x = 24,580,457,242.31/139,455.65
  6. Step 6: Final answer
    x = 176,260.03

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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.