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Finding the Fourth Proportional to 92,809.62, 127,980.46 and 55,076.58

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Solution

The fourth proportional to 92,809.62, 127,980.46 and 55,076.58 is: 75,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,809.62 : 127,980.46 = 55,076.58 : x
  2. Step 2: Convert to fraction form
    92,809.62/127,980.46 = 55,076.58/x
  3. Step 3: Cross multiply
    92,809.62x = 127,980.46 × 55,076.58
  4. Step 4: Simplify right side
    92,809.62x = 7,048,726,043.63
  5. Step 5: Solve for x
    x = 7,048,726,043.63/92,809.62
  6. Step 6: Final answer
    x = 75,948.23

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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.