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Finding the Fourth Proportional to 177,648.40, 266,618.40 and 171,816.40

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Solution

The fourth proportional to 177,648.40, 266,618.40 and 171,816.40 is: 257,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,648.40 : 266,618.40 = 171,816.40 : x
  2. Step 2: Convert to fraction form
    177,648.40/266,618.40 = 171,816.40/x
  3. Step 3: Cross multiply
    177,648.40x = 266,618.40 × 171,816.40
  4. Step 4: Simplify right side
    177,648.40x = 45,809,413,661.76
  5. Step 5: Solve for x
    x = 45,809,413,661.76/177,648.40
  6. Step 6: Final answer
    x = 257,865.61

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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.