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Finding the Fourth Proportional to 368,585.02, 508,563.18 and 207,381.25

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Solution

The fourth proportional to 368,585.02, 508,563.18 and 207,381.25 is: 286,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,585.02 : 508,563.18 = 207,381.25 : x
  2. Step 2: Convert to fraction form
    368,585.02/508,563.18 = 207,381.25/x
  3. Step 3: Cross multiply
    368,585.02x = 508,563.18 × 207,381.25
  4. Step 4: Simplify right side
    368,585.02x = 105,466,467,972.38
  5. Step 5: Solve for x
    x = 105,466,467,972.38/368,585.02
  6. Step 6: Final answer
    x = 286,138.78

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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.