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Finding the Fourth Proportional to 342,965.13, 514,474.30 and 103,060.29

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Solution

The fourth proportional to 342,965.13, 514,474.30 and 103,060.29 is: 154,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,965.13 : 514,474.30 = 103,060.29 : x
  2. Step 2: Convert to fraction form
    342,965.13/514,474.30 = 103,060.29/x
  3. Step 3: Cross multiply
    342,965.13x = 514,474.30 × 103,060.29
  4. Step 4: Simplify right side
    342,965.13x = 53,021,870,297.90
  5. Step 5: Solve for x
    x = 53,021,870,297.90/342,965.13
  6. Step 6: Final answer
    x = 154,598.43

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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.