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Finding the Fourth Proportional to 342,935.16, 514,320.11 and 102,998.58

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Solution

The fourth proportional to 342,935.16, 514,320.11 and 102,998.58 is: 154,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,935.16 : 514,320.11 = 102,998.58 : x
  2. Step 2: Convert to fraction form
    342,935.16/514,320.11 = 102,998.58/x
  3. Step 3: Cross multiply
    342,935.16x = 514,320.11 × 102,998.58
  4. Step 4: Simplify right side
    342,935.16x = 52,974,240,995.44
  5. Step 5: Solve for x
    x = 52,974,240,995.44/342,935.16
  6. Step 6: Final answer
    x = 154,473.05

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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.