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Finding the Fourth Proportional to 347,134.05, 520,513.83 and 157,490.93

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Solution

The fourth proportional to 347,134.05, 520,513.83 and 157,490.93 is: 236,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,134.05 : 520,513.83 = 157,490.93 : x
  2. Step 2: Convert to fraction form
    347,134.05/520,513.83 = 157,490.93/x
  3. Step 3: Cross multiply
    347,134.05x = 520,513.83 × 157,490.93
  4. Step 4: Simplify right side
    347,134.05x = 81,976,204,561.99
  5. Step 5: Solve for x
    x = 81,976,204,561.99/347,134.05
  6. Step 6: Final answer
    x = 236,151.44

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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.