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Finding the Fourth Proportional to 155,576.70, 233,019.45 and 127,928.70

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Solution

The fourth proportional to 155,576.70, 233,019.45 and 127,928.70 is: 191,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,576.70 : 233,019.45 = 127,928.70 : x
  2. Step 2: Convert to fraction form
    155,576.70/233,019.45 = 127,928.70/x
  3. Step 3: Cross multiply
    155,576.70x = 233,019.45 × 127,928.70
  4. Step 4: Simplify right side
    155,576.70x = 29,809,875,313.22
  5. Step 5: Solve for x
    x = 29,809,875,313.22/155,576.70
  6. Step 6: Final answer
    x = 191,608.87

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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.