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Finding the Fourth Proportional to 99,710.88, 149,622.21 and 52,962.54

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Solution

The fourth proportional to 99,710.88, 149,622.21 and 52,962.54 is: 79,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,710.88 : 149,622.21 = 52,962.54 : x
  2. Step 2: Convert to fraction form
    99,710.88/149,622.21 = 52,962.54/x
  3. Step 3: Cross multiply
    99,710.88x = 149,622.21 × 52,962.54
  4. Step 4: Simplify right side
    99,710.88x = 7,924,372,282.01
  5. Step 5: Solve for x
    x = 7,924,372,282.01/99,710.88
  6. Step 6: Final answer
    x = 79,473.50

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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.