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Finding the Fourth Proportional to 104,513.90, 156,655.65 and 57,800.30

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Solution

The fourth proportional to 104,513.90, 156,655.65 and 57,800.30 is: 86,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,513.90 : 156,655.65 = 57,800.30 : x
  2. Step 2: Convert to fraction form
    104,513.90/156,655.65 = 57,800.30/x
  3. Step 3: Cross multiply
    104,513.90x = 156,655.65 × 57,800.30
  4. Step 4: Simplify right side
    104,513.90x = 9,054,743,566.70
  5. Step 5: Solve for x
    x = 9,054,743,566.70/104,513.90
  6. Step 6: Final answer
    x = 86,636.74

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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.