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Finding the Fourth Proportional to 123,368.76, 184,806.45 and 56,717.55

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Solution

The fourth proportional to 123,368.76, 184,806.45 and 56,717.55 is: 84,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,368.76 : 184,806.45 = 56,717.55 : x
  2. Step 2: Convert to fraction form
    123,368.76/184,806.45 = 56,717.55/x
  3. Step 3: Cross multiply
    123,368.76x = 184,806.45 × 56,717.55
  4. Step 4: Simplify right side
    123,368.76x = 10,481,769,068.20
  5. Step 5: Solve for x
    x = 10,481,769,068.20/123,368.76
  6. Step 6: Final answer
    x = 84,962.91

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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.