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Finding the Fourth Proportional to 272,988.91, 409,528.44 and 123,225.88

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Solution

The fourth proportional to 272,988.91, 409,528.44 and 123,225.88 is: 184,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,988.91 : 409,528.44 = 123,225.88 : x
  2. Step 2: Convert to fraction form
    272,988.91/409,528.44 = 123,225.88/x
  3. Step 3: Cross multiply
    272,988.91x = 409,528.44 × 123,225.88
  4. Step 4: Simplify right side
    272,988.91x = 50,464,502,404.03
  5. Step 5: Solve for x
    x = 50,464,502,404.03/272,988.91
  6. Step 6: Final answer
    x = 184,859.17

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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.