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Finding the Fourth Proportional to 92,699.21, 127,919.79 and 52,410.42

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Solution

The fourth proportional to 92,699.21, 127,919.79 and 52,410.42 is: 72,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,699.21 : 127,919.79 = 52,410.42 : x
  2. Step 2: Convert to fraction form
    92,699.21/127,919.79 = 52,410.42/x
  3. Step 3: Cross multiply
    92,699.21x = 127,919.79 × 52,410.42
  4. Step 4: Simplify right side
    92,699.21x = 6,704,329,920.21
  5. Step 5: Solve for x
    x = 6,704,329,920.21/92,699.21
  6. Step 6: Final answer
    x = 72,323.48

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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.