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Finding the Fourth Proportional to 117,855.11, 176,782.67 and 97,034.87

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Solution

The fourth proportional to 117,855.11, 176,782.67 and 97,034.87 is: 145,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,855.11 : 176,782.67 = 97,034.87 : x
  2. Step 2: Convert to fraction form
    117,855.11/176,782.67 = 97,034.87/x
  3. Step 3: Cross multiply
    117,855.11x = 176,782.67 × 97,034.87
  4. Step 4: Simplify right side
    117,855.11x = 17,154,083,401.70
  5. Step 5: Solve for x
    x = 17,154,083,401.70/117,855.11
  6. Step 6: Final answer
    x = 145,552.31

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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.