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Finding the Fourth Proportional to 104,706.49, 156,969.01 and 42,336.49

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Solution

The fourth proportional to 104,706.49, 156,969.01 and 42,336.49 is: 63,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,706.49 : 156,969.01 = 42,336.49 : x
  2. Step 2: Convert to fraction form
    104,706.49/156,969.01 = 42,336.49/x
  3. Step 3: Cross multiply
    104,706.49x = 156,969.01 × 42,336.49
  4. Step 4: Simplify right side
    104,706.49x = 6,645,516,922.17
  5. Step 5: Solve for x
    x = 6,645,516,922.17/104,706.49
  6. Step 6: Final answer
    x = 63,468.05

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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.