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Finding the Fourth Proportional to 351,447.60, 484,987.32 and 198,492.06

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Solution

The fourth proportional to 351,447.60, 484,987.32 and 198,492.06 is: 273,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,447.60 : 484,987.32 = 198,492.06 : x
  2. Step 2: Convert to fraction form
    351,447.60/484,987.32 = 198,492.06/x
  3. Step 3: Cross multiply
    351,447.60x = 484,987.32 × 198,492.06
  4. Step 4: Simplify right side
    351,447.60x = 96,266,132,220.68
  5. Step 5: Solve for x
    x = 96,266,132,220.68/351,447.60
  6. Step 6: Final answer
    x = 273,913.19

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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.