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Finding the Fourth Proportional to 99,467.10, 149,200.65 and 88,580.70

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Solution

The fourth proportional to 99,467.10, 149,200.65 and 88,580.70 is: 132,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,467.10 : 149,200.65 = 88,580.70 : x
  2. Step 2: Convert to fraction form
    99,467.10/149,200.65 = 88,580.70/x
  3. Step 3: Cross multiply
    99,467.10x = 149,200.65 × 88,580.70
  4. Step 4: Simplify right side
    99,467.10x = 13,216,298,017.46
  5. Step 5: Solve for x
    x = 13,216,298,017.46/99,467.10
  6. Step 6: Final answer
    x = 132,871.05

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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.