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Finding the Fourth Proportional to 117,510.93, 176,505.12 and 103,782.03

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Solution

The fourth proportional to 117,510.93, 176,505.12 and 103,782.03 is: 155,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,510.93 : 176,505.12 = 103,782.03 : x
  2. Step 2: Convert to fraction form
    117,510.93/176,505.12 = 103,782.03/x
  3. Step 3: Cross multiply
    117,510.93x = 176,505.12 × 103,782.03
  4. Step 4: Simplify right side
    117,510.93x = 18,318,059,658.99
  5. Step 5: Solve for x
    x = 18,318,059,658.99/117,510.93
  6. Step 6: Final answer
    x = 155,883.88

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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.