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Finding the Fourth Proportional to 318,588.26, 439,581.20 and 184,374.50

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Solution

The fourth proportional to 318,588.26, 439,581.20 and 184,374.50 is: 254,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,588.26 : 439,581.20 = 184,374.50 : x
  2. Step 2: Convert to fraction form
    318,588.26/439,581.20 = 184,374.50/x
  3. Step 3: Cross multiply
    318,588.26x = 439,581.20 × 184,374.50
  4. Step 4: Simplify right side
    318,588.26x = 81,047,563,959.40
  5. Step 5: Solve for x
    x = 81,047,563,959.40/318,588.26
  6. Step 6: Final answer
    x = 254,395.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.