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Finding the Fourth Proportional to 123,036.52, 184,554.78 and 70,408.78

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Solution

The fourth proportional to 123,036.52, 184,554.78 and 70,408.78 is: 105,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.52 : 184,554.78 = 70,408.78 : x
  2. Step 2: Convert to fraction form
    123,036.52/184,554.78 = 70,408.78/x
  3. Step 3: Cross multiply
    123,036.52x = 184,554.78 × 70,408.78
  4. Step 4: Simplify right side
    123,036.52x = 12,994,276,902.97
  5. Step 5: Solve for x
    x = 12,994,276,902.97/123,036.52
  6. Step 6: Final answer
    x = 105,613.17

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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.