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Finding the Fourth Proportional to 112,599, 168,898.50 and 42,461.91

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Solution

The fourth proportional to 112,599, 168,898.50 and 42,461.91 is: 63,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,599 : 168,898.50 = 42,461.91 : x
  2. Step 2: Convert to fraction form
    112,599/168,898.50 = 42,461.91/x
  3. Step 3: Cross multiply
    112,599x = 168,898.50 × 42,461.91
  4. Step 4: Simplify right side
    112,599x = 7,171,752,906.14
  5. Step 5: Solve for x
    x = 7,171,752,906.14/112,599
  6. Step 6: Final answer
    x = 63,692.87

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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.