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Finding the Fourth Proportional to 92,518.48, 127,676.60 and 54,278.70

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Solution

The fourth proportional to 92,518.48, 127,676.60 and 54,278.70 is: 74,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,518.48 : 127,676.60 = 54,278.70 : x
  2. Step 2: Convert to fraction form
    92,518.48/127,676.60 = 54,278.70/x
  3. Step 3: Cross multiply
    92,518.48x = 127,676.60 × 54,278.70
  4. Step 4: Simplify right side
    92,518.48x = 6,930,119,868.42
  5. Step 5: Solve for x
    x = 6,930,119,868.42/92,518.48
  6. Step 6: Final answer
    x = 74,905.25

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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.