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Finding the Fourth Proportional to 371,714.80, 557,134.80 and 194,130.40

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Solution

The fourth proportional to 371,714.80, 557,134.80 and 194,130.40 is: 290,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,714.80 : 557,134.80 = 194,130.40 : x
  2. Step 2: Convert to fraction form
    371,714.80/557,134.80 = 194,130.40/x
  3. Step 3: Cross multiply
    371,714.80x = 557,134.80 × 194,130.40
  4. Step 4: Simplify right side
    371,714.80x = 108,156,801,577.92
  5. Step 5: Solve for x
    x = 108,156,801,577.92/371,714.80
  6. Step 6: Final answer
    x = 290,967.17

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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.