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Finding the Fourth Proportional to 368,065.70, 552,098.61 and 115,346.10

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Solution

The fourth proportional to 368,065.70, 552,098.61 and 115,346.10 is: 173,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,065.70 : 552,098.61 = 115,346.10 : x
  2. Step 2: Convert to fraction form
    368,065.70/552,098.61 = 115,346.10/x
  3. Step 3: Cross multiply
    368,065.70x = 552,098.61 × 115,346.10
  4. Step 4: Simplify right side
    368,065.70x = 63,682,421,478.92
  5. Step 5: Solve for x
    x = 63,682,421,478.92/368,065.70
  6. Step 6: Final answer
    x = 173,019.17

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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.