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Finding the Fourth Proportional to 371,440.89, 557,382.69 and 134,802.03

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Solution

The fourth proportional to 371,440.89, 557,382.69 and 134,802.03 is: 202,283.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,440.89 : 557,382.69 = 134,802.03 : x
  2. Step 2: Convert to fraction form
    371,440.89/557,382.69 = 134,802.03/x
  3. Step 3: Cross multiply
    371,440.89x = 557,382.69 × 134,802.03
  4. Step 4: Simplify right side
    371,440.89x = 75,136,318,098.86
  5. Step 5: Solve for x
    x = 75,136,318,098.86/371,440.89
  6. Step 6: Final answer
    x = 202,283.38

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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.