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Finding the Fourth Proportional to 185,597.45, 256,125.18 and 100,714.51

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Solution

The fourth proportional to 185,597.45, 256,125.18 and 100,714.51 is: 138,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,597.45 : 256,125.18 = 100,714.51 : x
  2. Step 2: Convert to fraction form
    185,597.45/256,125.18 = 100,714.51/x
  3. Step 3: Cross multiply
    185,597.45x = 256,125.18 × 100,714.51
  4. Step 4: Simplify right side
    185,597.45x = 25,795,522,002.36
  5. Step 5: Solve for x
    x = 25,795,522,002.36/185,597.45
  6. Step 6: Final answer
    x = 138,986.40

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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.