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Finding the Fourth Proportional to 99,433.36, 148,975.08 and 88,585.84

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Solution

The fourth proportional to 99,433.36, 148,975.08 and 88,585.84 is: 132,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,433.36 : 148,975.08 = 88,585.84 : x
  2. Step 2: Convert to fraction form
    99,433.36/148,975.08 = 88,585.84/x
  3. Step 3: Cross multiply
    99,433.36x = 148,975.08 × 88,585.84
  4. Step 4: Simplify right side
    99,433.36x = 13,197,082,600.87
  5. Step 5: Solve for x
    x = 13,197,082,600.87/99,433.36
  6. Step 6: Final answer
    x = 132,722.89

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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.