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Finding the Fourth Proportional to 356,441.40, 534,662.10 and 107,123.40

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Solution

The fourth proportional to 356,441.40, 534,662.10 and 107,123.40 is: 160,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,441.40 : 534,662.10 = 107,123.40 : x
  2. Step 2: Convert to fraction form
    356,441.40/534,662.10 = 107,123.40/x
  3. Step 3: Cross multiply
    356,441.40x = 534,662.10 × 107,123.40
  4. Step 4: Simplify right side
    356,441.40x = 57,274,822,003.14
  5. Step 5: Solve for x
    x = 57,274,822,003.14/356,441.40
  6. Step 6: Final answer
    x = 160,685.10

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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.