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Finding the Fourth Proportional to 92,701.14, 127,919.70 and 52,409.31

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Solution

The fourth proportional to 92,701.14, 127,919.70 and 52,409.31 is: 72,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,701.14 : 127,919.70 = 52,409.31 : x
  2. Step 2: Convert to fraction form
    92,701.14/127,919.70 = 52,409.31/x
  3. Step 3: Cross multiply
    92,701.14x = 127,919.70 × 52,409.31
  4. Step 4: Simplify right side
    92,701.14x = 6,704,183,212.41
  5. Step 5: Solve for x
    x = 6,704,183,212.41/92,701.14
  6. Step 6: Final answer
    x = 72,320.40

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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.