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Finding the Fourth Proportional to 349,988.96, 482,980.56 and 199,085.60

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Solution

The fourth proportional to 349,988.96, 482,980.56 and 199,085.60 is: 274,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,988.96 : 482,980.56 = 199,085.60 : x
  2. Step 2: Convert to fraction form
    349,988.96/482,980.56 = 199,085.60/x
  3. Step 3: Cross multiply
    349,988.96x = 482,980.56 × 199,085.60
  4. Step 4: Simplify right side
    349,988.96x = 96,154,474,575.94
  5. Step 5: Solve for x
    x = 96,154,474,575.94/349,988.96
  6. Step 6: Final answer
    x = 274,735.74

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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.