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Finding the Fourth Proportional to 99,049.98, 148,599 and 56,956.98

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Solution

The fourth proportional to 99,049.98, 148,599 and 56,956.98 is: 85,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,049.98 : 148,599 = 56,956.98 : x
  2. Step 2: Convert to fraction form
    99,049.98/148,599 = 56,956.98/x
  3. Step 3: Cross multiply
    99,049.98x = 148,599 × 56,956.98
  4. Step 4: Simplify right side
    99,049.98x = 8,463,750,271.02
  5. Step 5: Solve for x
    x = 8,463,750,271.02/99,049.98
  6. Step 6: Final answer
    x = 85,449.29

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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.