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Finding the Fourth Proportional to 185,596.35, 256,123.62 and 100,713.40

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Solution

The fourth proportional to 185,596.35, 256,123.62 and 100,713.40 is: 138,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,596.35 : 256,123.62 = 100,713.40 : x
  2. Step 2: Convert to fraction form
    185,596.35/256,123.62 = 100,713.40/x
  3. Step 3: Cross multiply
    185,596.35x = 256,123.62 × 100,713.40
  4. Step 4: Simplify right side
    185,596.35x = 25,795,080,590.51
  5. Step 5: Solve for x
    x = 25,795,080,590.51/185,596.35
  6. Step 6: Final answer
    x = 138,984.85

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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.