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Finding the Fourth Proportional to 117,553.70, 176,406.15 and 65,000.90

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Solution

The fourth proportional to 117,553.70, 176,406.15 and 65,000.90 is: 97,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,553.70 : 176,406.15 = 65,000.90 : x
  2. Step 2: Convert to fraction form
    117,553.70/176,406.15 = 65,000.90/x
  3. Step 3: Cross multiply
    117,553.70x = 176,406.15 × 65,000.90
  4. Step 4: Simplify right side
    117,553.70x = 11,466,558,515.54
  5. Step 5: Solve for x
    x = 11,466,558,515.54/117,553.70
  6. Step 6: Final answer
    x = 97,543.15

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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.