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Finding the Fourth Proportional to 123,065.10, 184,597.65 and 115,289.10

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Solution

The fourth proportional to 123,065.10, 184,597.65 and 115,289.10 is: 172,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,065.10 : 184,597.65 = 115,289.10 : x
  2. Step 2: Convert to fraction form
    123,065.10/184,597.65 = 115,289.10/x
  3. Step 3: Cross multiply
    123,065.10x = 184,597.65 × 115,289.10
  4. Step 4: Simplify right side
    123,065.10x = 21,282,096,930.62
  5. Step 5: Solve for x
    x = 21,282,096,930.62/123,065.10
  6. Step 6: Final answer
    x = 172,933.65

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1.5x scale

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.