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Finding the Fourth Proportional to 185,765.72, 256,435.14 and 125,418.08

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Solution

The fourth proportional to 185,765.72, 256,435.14 and 125,418.08 is: 173,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,765.72 : 256,435.14 = 125,418.08 : x
  2. Step 2: Convert to fraction form
    185,765.72/256,435.14 = 125,418.08/x
  3. Step 3: Cross multiply
    185,765.72x = 256,435.14 × 125,418.08
  4. Step 4: Simplify right side
    185,765.72x = 32,161,602,903.33
  5. Step 5: Solve for x
    x = 32,161,602,903.33/185,765.72
  6. Step 6: Final answer
    x = 173,129.91

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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.