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Finding the Fourth Proportional to 185,612.88, 256,013.43 and 170,348.61

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Solution

The fourth proportional to 185,612.88, 256,013.43 and 170,348.61 is: 234,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,612.88 : 256,013.43 = 170,348.61 : x
  2. Step 2: Convert to fraction form
    185,612.88/256,013.43 = 170,348.61/x
  3. Step 3: Cross multiply
    185,612.88x = 256,013.43 × 170,348.61
  4. Step 4: Simplify right side
    185,612.88x = 43,611,531,941.83
  5. Step 5: Solve for x
    x = 43,611,531,941.83/185,612.88
  6. Step 6: Final answer
    x = 234,959.62

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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.