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Finding the Fourth Proportional to 185,765.76, 256,435.23 and 125,418.15

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Solution

The fourth proportional to 185,765.76, 256,435.23 and 125,418.15 is: 173,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,765.76 : 256,435.23 = 125,418.15 : x
  2. Step 2: Convert to fraction form
    185,765.76/256,435.23 = 125,418.15/x
  3. Step 3: Cross multiply
    185,765.76x = 256,435.23 × 125,418.15
  4. Step 4: Simplify right side
    185,765.76x = 32,161,632,141.42
  5. Step 5: Solve for x
    x = 32,161,632,141.42/185,765.76
  6. Step 6: Final answer
    x = 173,130.03

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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.