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Finding the Fourth Proportional to 340,096.80, 510,123.60 and 115,456.80

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Solution

The fourth proportional to 340,096.80, 510,123.60 and 115,456.80 is: 173,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,096.80 : 510,123.60 = 115,456.80 : x
  2. Step 2: Convert to fraction form
    340,096.80/510,123.60 = 115,456.80/x
  3. Step 3: Cross multiply
    340,096.80x = 510,123.60 × 115,456.80
  4. Step 4: Simplify right side
    340,096.80x = 58,897,238,460.48
  5. Step 5: Solve for x
    x = 58,897,238,460.48/340,096.80
  6. Step 6: Final answer
    x = 173,177.87

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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.