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Finding the Fourth Proportional to 99,245.49, 149,059.71 and 85,046.16

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Solution

The fourth proportional to 99,245.49, 149,059.71 and 85,046.16 is: 127,733.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,245.49 : 149,059.71 = 85,046.16 : x
  2. Step 2: Convert to fraction form
    99,245.49/149,059.71 = 85,046.16/x
  3. Step 3: Cross multiply
    99,245.49x = 149,059.71 × 85,046.16
  4. Step 4: Simplify right side
    99,245.49x = 12,676,955,946.21
  5. Step 5: Solve for x
    x = 12,676,955,946.21/99,245.49
  6. Step 6: Final answer
    x = 127,733.32

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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.