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Finding the Fourth Proportional to 203,875.10, 305,812.65 and 203,875.10

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Solution

The fourth proportional to 203,875.10, 305,812.65 and 203,875.10 is: 305,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,875.10 : 305,812.65 = 203,875.10 : x
  2. Step 2: Convert to fraction form
    203,875.10/305,812.65 = 203,875.10/x
  3. Step 3: Cross multiply
    203,875.10x = 305,812.65 × 203,875.10
  4. Step 4: Simplify right side
    203,875.10x = 62,347,584,600.02
  5. Step 5: Solve for x
    x = 62,347,584,600.02/203,875.10
  6. Step 6: Final answer
    x = 305,812.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.