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Finding the Fourth Proportional to 92,703.42, 127,992.15 and 54,989.82

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Solution

The fourth proportional to 92,703.42, 127,992.15 and 54,989.82 is: 75,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,703.42 : 127,992.15 = 54,989.82 : x
  2. Step 2: Convert to fraction form
    92,703.42/127,992.15 = 54,989.82/x
  3. Step 3: Cross multiply
    92,703.42x = 127,992.15 × 54,989.82
  4. Step 4: Simplify right side
    92,703.42x = 7,038,265,289.91
  5. Step 5: Solve for x
    x = 7,038,265,289.91/92,703.42
  6. Step 6: Final answer
    x = 75,922.39

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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.