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Finding the Fourth Proportional to 345,688.55, 477,155.63 and 200,531.01

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Solution

The fourth proportional to 345,688.55, 477,155.63 and 200,531.01 is: 276,793.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,688.55 : 477,155.63 = 200,531.01 : x
  2. Step 2: Convert to fraction form
    345,688.55/477,155.63 = 200,531.01/x
  3. Step 3: Cross multiply
    345,688.55x = 477,155.63 × 200,531.01
  4. Step 4: Simplify right side
    345,688.55x = 95,684,500,411.09
  5. Step 5: Solve for x
    x = 95,684,500,411.09/345,688.55
  6. Step 6: Final answer
    x = 276,793.95

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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.