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Finding the Fourth Proportional to 128,097, 176,760.42 and 74,371.52

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Solution

The fourth proportional to 128,097, 176,760.42 and 74,371.52 is: 102,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097 : 176,760.42 = 74,371.52 : x
  2. Step 2: Convert to fraction form
    128,097/176,760.42 = 74,371.52/x
  3. Step 3: Cross multiply
    128,097x = 176,760.42 × 74,371.52
  4. Step 4: Simplify right side
    128,097x = 13,145,941,111.24
  5. Step 5: Solve for x
    x = 13,145,941,111.24/128,097
  6. Step 6: Final answer
    x = 102,624.89

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