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Finding the Fourth Proportional to 375,830.88, 563,735.38 and 139,168.32

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Solution

The fourth proportional to 375,830.88, 563,735.38 and 139,168.32 is: 208,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,830.88 : 563,735.38 = 139,168.32 : x
  2. Step 2: Convert to fraction form
    375,830.88/563,735.38 = 139,168.32/x
  3. Step 3: Cross multiply
    375,830.88x = 563,735.38 × 139,168.32
  4. Step 4: Simplify right side
    375,830.88x = 78,454,105,759.16
  5. Step 5: Solve for x
    x = 78,454,105,759.16/375,830.88
  6. Step 6: Final answer
    x = 208,748.43

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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.