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Finding the Fourth Proportional to 123,210.52, 184,838.57 and 38,991.89

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Solution

The fourth proportional to 123,210.52, 184,838.57 and 38,991.89 is: 58,495.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,210.52 : 184,838.57 = 38,991.89 : x
  2. Step 2: Convert to fraction form
    123,210.52/184,838.57 = 38,991.89/x
  3. Step 3: Cross multiply
    123,210.52x = 184,838.57 × 38,991.89
  4. Step 4: Simplify right side
    123,210.52x = 7,207,204,070.05
  5. Step 5: Solve for x
    x = 7,207,204,070.05/123,210.52
  6. Step 6: Final answer
    x = 58,495.04

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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.