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Finding the Fourth Proportional to 371,284.66, 512,373.21 and 201,518.82

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Solution

The fourth proportional to 371,284.66, 512,373.21 and 201,518.82 is: 278,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,284.66 : 512,373.21 = 201,518.82 : x
  2. Step 2: Convert to fraction form
    371,284.66/512,373.21 = 201,518.82/x
  3. Step 3: Cross multiply
    371,284.66x = 512,373.21 × 201,518.82
  4. Step 4: Simplify right side
    371,284.66x = 103,252,844,678.81
  5. Step 5: Solve for x
    x = 103,252,844,678.81/371,284.66
  6. Step 6: Final answer
    x = 278,096.18

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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.