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Finding the Fourth Proportional to 185,854.94, 278,740.38 and 85,960.32

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Solution

The fourth proportional to 185,854.94, 278,740.38 and 85,960.32 is: 128,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,854.94 : 278,740.38 = 85,960.32 : x
  2. Step 2: Convert to fraction form
    185,854.94/278,740.38 = 85,960.32/x
  3. Step 3: Cross multiply
    185,854.94x = 278,740.38 × 85,960.32
  4. Step 4: Simplify right side
    185,854.94x = 23,960,612,261.72
  5. Step 5: Solve for x
    x = 23,960,612,261.72/185,854.94
  6. Step 6: Final answer
    x = 128,921.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.