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Finding the Fourth Proportional to 371,440.64, 557,382.31 and 134,801.77

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Solution

The fourth proportional to 371,440.64, 557,382.31 and 134,801.77 is: 202,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,440.64 : 557,382.31 = 134,801.77 : x
  2. Step 2: Convert to fraction form
    371,440.64/557,382.31 = 134,801.77/x
  3. Step 3: Cross multiply
    371,440.64x = 557,382.31 × 134,801.77
  4. Step 4: Simplify right side
    371,440.64x = 75,136,121,954.69
  5. Step 5: Solve for x
    x = 75,136,121,954.69/371,440.64
  6. Step 6: Final answer
    x = 202,282.99

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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.