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Finding the Fourth Proportional to 371,409.12, 557,141.04 and 134,753.04

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Solution

The fourth proportional to 371,409.12, 557,141.04 and 134,753.04 is: 202,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,409.12 : 557,141.04 = 134,753.04 : x
  2. Step 2: Convert to fraction form
    371,409.12/557,141.04 = 134,753.04/x
  3. Step 3: Cross multiply
    371,409.12x = 557,141.04 × 134,753.04
  4. Step 4: Simplify right side
    371,409.12x = 75,076,448,848.76
  5. Step 5: Solve for x
    x = 75,076,448,848.76/371,409.12
  6. Step 6: Final answer
    x = 202,139.49

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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.