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Finding the Fourth Proportional to 99,888.62, 149,810.45 and 28,795.93

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Solution

The fourth proportional to 99,888.62, 149,810.45 and 28,795.93 is: 43,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,888.62 : 149,810.45 = 28,795.93 : x
  2. Step 2: Convert to fraction form
    99,888.62/149,810.45 = 28,795.93/x
  3. Step 3: Cross multiply
    99,888.62x = 149,810.45 × 28,795.93
  4. Step 4: Simplify right side
    99,888.62x = 4,313,930,712.96
  5. Step 5: Solve for x
    x = 4,313,930,712.96/99,888.62
  6. Step 6: Final answer
    x = 43,187.41

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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.