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Finding the Fourth Proportional to 261,937.51, 361,517.25 and 154,533.94

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Solution

The fourth proportional to 261,937.51, 361,517.25 and 154,533.94 is: 213,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,937.51 : 361,517.25 = 154,533.94 : x
  2. Step 2: Convert to fraction form
    261,937.51/361,517.25 = 154,533.94/x
  3. Step 3: Cross multiply
    261,937.51x = 361,517.25 × 154,533.94
  4. Step 4: Simplify right side
    261,937.51x = 55,866,685,020.47
  5. Step 5: Solve for x
    x = 55,866,685,020.47/261,937.51
  6. Step 6: Final answer
    x = 213,282.49

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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.