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Finding the Fourth Proportional to 58,991.40, 88,471.62 and 40,267.98

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Solution

The fourth proportional to 58,991.40, 88,471.62 and 40,267.98 is: 60,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,991.40 : 88,471.62 = 40,267.98 : x
  2. Step 2: Convert to fraction form
    58,991.40/88,471.62 = 40,267.98/x
  3. Step 3: Cross multiply
    58,991.40x = 88,471.62 × 40,267.98
  4. Step 4: Simplify right side
    58,991.40x = 3,562,573,424.73
  5. Step 5: Solve for x
    x = 3,562,573,424.73/58,991.40
  6. Step 6: Final answer
    x = 60,391.40

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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.