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Finding the Fourth Proportional to 375,604.75, 563,628.54 and 139,113.49

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Solution

The fourth proportional to 375,604.75, 563,628.54 and 139,113.49 is: 208,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,604.75 : 563,628.54 = 139,113.49 : x
  2. Step 2: Convert to fraction form
    375,604.75/563,628.54 = 139,113.49/x
  3. Step 3: Cross multiply
    375,604.75x = 563,628.54 × 139,113.49
  4. Step 4: Simplify right side
    375,604.75x = 78,408,333,263.00
  5. Step 5: Solve for x
    x = 78,408,333,263.00/375,604.75
  6. Step 6: Final answer
    x = 208,752.24

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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.