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Finding the Fourth Proportional to 58,771.12, 88,137.96 and 19,319.11

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Solution

The fourth proportional to 58,771.12, 88,137.96 and 19,319.11 is: 28,972.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,771.12 : 88,137.96 = 19,319.11 : x
  2. Step 2: Convert to fraction form
    58,771.12/88,137.96 = 19,319.11/x
  3. Step 3: Cross multiply
    58,771.12x = 88,137.96 × 19,319.11
  4. Step 4: Simplify right side
    58,771.12x = 1,702,746,944.42
  5. Step 5: Solve for x
    x = 1,702,746,944.42/58,771.12
  6. Step 6: Final answer
    x = 28,972.51

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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.