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Finding the Fourth Proportional to 261,628.65, 361,042.94 and 146,908.20

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Solution

The fourth proportional to 261,628.65, 361,042.94 and 146,908.20 is: 202,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,628.65 : 361,042.94 = 146,908.20 : x
  2. Step 2: Convert to fraction form
    261,628.65/361,042.94 = 146,908.20/x
  3. Step 3: Cross multiply
    261,628.65x = 361,042.94 × 146,908.20
  4. Step 4: Simplify right side
    261,628.65x = 53,040,167,302.06
  5. Step 5: Solve for x
    x = 53,040,167,302.06/261,628.65
  6. Step 6: Final answer
    x = 202,730.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.