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Finding the Fourth Proportional to 185,154.78, 277,732.58 and 66,909.63

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Solution

The fourth proportional to 185,154.78, 277,732.58 and 66,909.63 is: 100,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,154.78 : 277,732.58 = 66,909.63 : x
  2. Step 2: Convert to fraction form
    185,154.78/277,732.58 = 66,909.63/x
  3. Step 3: Cross multiply
    185,154.78x = 277,732.58 × 66,909.63
  4. Step 4: Simplify right side
    185,154.78x = 18,582,983,832.20
  5. Step 5: Solve for x
    x = 18,582,983,832.20/185,154.78
  6. Step 6: Final answer
    x = 100,364.59

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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.