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Finding the Fourth Proportional to 371,643.30, 557,466.39 and 105,395.94

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Solution

The fourth proportional to 371,643.30, 557,466.39 and 105,395.94 is: 158,094.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,643.30 : 557,466.39 = 105,395.94 : x
  2. Step 2: Convert to fraction form
    371,643.30/557,466.39 = 105,395.94/x
  3. Step 3: Cross multiply
    371,643.30x = 557,466.39 × 105,395.94
  4. Step 4: Simplify right side
    371,643.30x = 58,754,694,192.46
  5. Step 5: Solve for x
    x = 58,754,694,192.46/371,643.30
  6. Step 6: Final answer
    x = 158,094.32

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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.