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Finding the Fourth Proportional to 185,755.90, 278,630.87 and 73,437.15

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Solution

The fourth proportional to 185,755.90, 278,630.87 and 73,437.15 is: 110,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,755.90 : 278,630.87 = 73,437.15 : x
  2. Step 2: Convert to fraction form
    185,755.90/278,630.87 = 73,437.15/x
  3. Step 3: Cross multiply
    185,755.90x = 278,630.87 × 73,437.15
  4. Step 4: Simplify right side
    185,755.90x = 20,461,856,994.82
  5. Step 5: Solve for x
    x = 20,461,856,994.82/185,755.90
  6. Step 6: Final answer
    x = 110,154.55

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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.