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Finding the Fourth Proportional to 358,019.15, 536,945.56 and 105,232.01

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Solution

The fourth proportional to 358,019.15, 536,945.56 and 105,232.01 is: 157,823.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,019.15 : 536,945.56 = 105,232.01 : x
  2. Step 2: Convert to fraction form
    358,019.15/536,945.56 = 105,232.01/x
  3. Step 3: Cross multiply
    358,019.15x = 536,945.56 × 105,232.01
  4. Step 4: Simplify right side
    358,019.15x = 56,503,857,591.57
  5. Step 5: Solve for x
    x = 56,503,857,591.57/358,019.15
  6. Step 6: Final answer
    x = 157,823.56

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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.