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Finding the Fourth Proportional to 343,950.40, 515,928.84 and 104,066.20

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Solution

The fourth proportional to 343,950.40, 515,928.84 and 104,066.20 is: 156,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,950.40 : 515,928.84 = 104,066.20 : x
  2. Step 2: Convert to fraction form
    343,950.40/515,928.84 = 104,066.20/x
  3. Step 3: Cross multiply
    343,950.40x = 515,928.84 × 104,066.20
  4. Step 4: Simplify right side
    343,950.40x = 53,690,753,849.21
  5. Step 5: Solve for x
    x = 53,690,753,849.21/343,950.40
  6. Step 6: Final answer
    x = 156,100.28

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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.