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Finding the Fourth Proportional to 119,644.58, 165,113.30 and 68,666.63

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Solution

The fourth proportional to 119,644.58, 165,113.30 and 68,666.63 is: 94,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,644.58 : 165,113.30 = 68,666.63 : x
  2. Step 2: Convert to fraction form
    119,644.58/165,113.30 = 68,666.63/x
  3. Step 3: Cross multiply
    119,644.58x = 165,113.30 × 68,666.63
  4. Step 4: Simplify right side
    119,644.58x = 11,337,773,225.28
  5. Step 5: Solve for x
    x = 11,337,773,225.28/119,644.58
  6. Step 6: Final answer
    x = 94,762.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.