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Finding the Fourth Proportional to 171,036.70, 256,555.05 and 147,708.70

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Solution

The fourth proportional to 171,036.70, 256,555.05 and 147,708.70 is: 221,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,036.70 : 256,555.05 = 147,708.70 : x
  2. Step 2: Convert to fraction form
    171,036.70/256,555.05 = 147,708.70/x
  3. Step 3: Cross multiply
    171,036.70x = 256,555.05 × 147,708.70
  4. Step 4: Simplify right side
    171,036.70x = 37,895,412,913.94
  5. Step 5: Solve for x
    x = 37,895,412,913.94/171,036.70
  6. Step 6: Final answer
    x = 221,563.05

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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.