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Finding the Fourth Proportional to 99,295.46, 137,012.46 and 58,994.31

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Solution

The fourth proportional to 99,295.46, 137,012.46 and 58,994.31 is: 81,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.46 : 137,012.46 = 58,994.31 : x
  2. Step 2: Convert to fraction form
    99,295.46/137,012.46 = 58,994.31/x
  3. Step 3: Cross multiply
    99,295.46x = 137,012.46 × 58,994.31
  4. Step 4: Simplify right side
    99,295.46x = 8,082,955,539.10
  5. Step 5: Solve for x
    x = 8,082,955,539.10/99,295.46
  6. Step 6: Final answer
    x = 81,403.08

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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.