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Finding the Fourth Proportional to 255,998.71, 353,411.04 and 187,010.71

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Solution

The fourth proportional to 255,998.71, 353,411.04 and 187,010.71 is: 258,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,998.71 : 353,411.04 = 187,010.71 : x
  2. Step 2: Convert to fraction form
    255,998.71/353,411.04 = 187,010.71/x
  3. Step 3: Cross multiply
    255,998.71x = 353,411.04 × 187,010.71
  4. Step 4: Simplify right side
    255,998.71x = 66,091,649,512.24
  5. Step 5: Solve for x
    x = 66,091,649,512.24/255,998.71
  6. Step 6: Final answer
    x = 258,171.81

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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.