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Finding the Fourth Proportional to 123,036.40, 184,554.60 and 107,484.40

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Solution

The fourth proportional to 123,036.40, 184,554.60 and 107,484.40 is: 161,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.40 : 184,554.60 = 107,484.40 : x
  2. Step 2: Convert to fraction form
    123,036.40/184,554.60 = 107,484.40/x
  3. Step 3: Cross multiply
    123,036.40x = 184,554.60 × 107,484.40
  4. Step 4: Simplify right side
    123,036.40x = 19,836,740,448.24
  5. Step 5: Solve for x
    x = 19,836,740,448.24/123,036.40
  6. Step 6: Final answer
    x = 161,226.60

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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.