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Finding the Fourth Proportional to 99,001, 148,129.50 and 69,476.44

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Solution

The fourth proportional to 99,001, 148,129.50 and 69,476.44 is: 103,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,001 : 148,129.50 = 69,476.44 : x
  2. Step 2: Convert to fraction form
    99,001/148,129.50 = 69,476.44/x
  3. Step 3: Cross multiply
    99,001x = 148,129.50 × 69,476.44
  4. Step 4: Simplify right side
    99,001x = 10,291,510,318.98
  5. Step 5: Solve for x
    x = 10,291,510,318.98/99,001
  6. Step 6: Final answer
    x = 103,953.60

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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.