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Finding the Fourth Proportional to 99,217.64, 148,483.22 and 61,251.32

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Solution

The fourth proportional to 99,217.64, 148,483.22 and 61,251.32 is: 91,665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,217.64 : 148,483.22 = 61,251.32 : x
  2. Step 2: Convert to fraction form
    99,217.64/148,483.22 = 61,251.32/x
  3. Step 3: Cross multiply
    99,217.64x = 148,483.22 × 61,251.32
  4. Step 4: Simplify right side
    99,217.64x = 9,094,793,222.85
  5. Step 5: Solve for x
    x = 9,094,793,222.85/99,217.64
  6. Step 6: Final answer
    x = 91,665.08

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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.