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Finding the Fourth Proportional to 185,256.20, 255,651.54 and 100,368.20

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Solution

The fourth proportional to 185,256.20, 255,651.54 and 100,368.20 is: 138,507.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,256.20 : 255,651.54 = 100,368.20 : x
  2. Step 2: Convert to fraction form
    185,256.20/255,651.54 = 100,368.20/x
  3. Step 3: Cross multiply
    185,256.20x = 255,651.54 × 100,368.20
  4. Step 4: Simplify right side
    185,256.20x = 25,659,284,897.03
  5. Step 5: Solve for x
    x = 25,659,284,897.03/185,256.20
  6. Step 6: Final answer
    x = 138,507.02

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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.