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Finding the Fourth Proportional to 345,657.85, 477,009.81 and 192,705.75

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Solution

The fourth proportional to 345,657.85, 477,009.81 and 192,705.75 is: 265,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,657.85 : 477,009.81 = 192,705.75 : x
  2. Step 2: Convert to fraction form
    345,657.85/477,009.81 = 192,705.75/x
  3. Step 3: Cross multiply
    345,657.85x = 477,009.81 × 192,705.75
  4. Step 4: Simplify right side
    345,657.85x = 91,922,533,193.41
  5. Step 5: Solve for x
    x = 91,922,533,193.41/345,657.85
  6. Step 6: Final answer
    x = 265,935.04

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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.