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Finding the Fourth Proportional to 92,886.60, 128,186.02 and 54,648.66

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Solution

The fourth proportional to 92,886.60, 128,186.02 and 54,648.66 is: 75,416.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,886.60 : 128,186.02 = 54,648.66 : x
  2. Step 2: Convert to fraction form
    92,886.60/128,186.02 = 54,648.66/x
  3. Step 3: Cross multiply
    92,886.60x = 128,186.02 × 54,648.66
  4. Step 4: Simplify right side
    92,886.60x = 7,005,194,223.73
  5. Step 5: Solve for x
    x = 7,005,194,223.73/92,886.60
  6. Step 6: Final answer
    x = 75,416.63

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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.