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Finding the Fourth Proportional to 92,019.82, 138,029.65 and 29,690.32

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Solution

The fourth proportional to 92,019.82, 138,029.65 and 29,690.32 is: 44,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,019.82 : 138,029.65 = 29,690.32 : x
  2. Step 2: Convert to fraction form
    92,019.82/138,029.65 = 29,690.32/x
  3. Step 3: Cross multiply
    92,019.82x = 138,029.65 × 29,690.32
  4. Step 4: Simplify right side
    92,019.82x = 4,098,144,477.99
  5. Step 5: Solve for x
    x = 4,098,144,477.99/92,019.82
  6. Step 6: Final answer
    x = 44,535.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.