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Finding the Fourth Proportional to 99,613.56, 149,464.08 and 52,870.08

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Solution

The fourth proportional to 99,613.56, 149,464.08 and 52,870.08 is: 79,328.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,613.56 : 149,464.08 = 52,870.08 : x
  2. Step 2: Convert to fraction form
    99,613.56/149,464.08 = 52,870.08/x
  3. Step 3: Cross multiply
    99,613.56x = 149,464.08 × 52,870.08
  4. Step 4: Simplify right side
    99,613.56x = 7,902,177,866.73
  5. Step 5: Solve for x
    x = 7,902,177,866.73/99,613.56
  6. Step 6: Final answer
    x = 79,328.34

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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.